WWE Superstars “The Miz” and Alicia Fox answer questions from the audience during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar Alicia Fox speaks departs the base dining facility before the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Aviation ordnancemen greet Adam Devine following the Chairman’s USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, meet with airmen assigned to the 380th Air Expeditionary Wing at Al Dhafra Air Base Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann autographs a guitar following a performance during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox answer questions from the audience during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine meets with Marines assigned to Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa as part of a troop engagement during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann meets with airmen assigned to the 380th Air Expeditionary Wing at Al Dhafra Air Base Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Actor Adam Devine, WWE Superstar "The Miz," and country music artist Jerrod Niemann talk backstage during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, departs the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Chef Robert Irvine feeds WWE Superstar "The Miz" as part of a cooking demonstration during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann brings soldiers on stage to hold the American Flag during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine meets with Marines assigned to Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa as part of a troop engagement during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during the USO Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Actor Adam Devine, wrestler Gail Kim, comedian Iliza Shlesinger, and Chef Robert Irvine meet with airmen assigned to the 380th Air Expeditionary Wing at Al Dhafra Air Base Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Wrestler Gail Kim and Chef Robert Irvine perform during Chairman’s USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

USO volunteers watch the USO Holiday Tour at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar "the Miz," Chef Robert Irvine, and comedian Adam Devine arrive at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine performs during the chairman's Holiday Tour for service members at Advisory Post Lightning, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann brings soldiers on stage to hold the American Flag during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Members of the USO Holiday Tour sing "Winter Wonderland" during a stop aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) during a visit to the ship as part of the USO Holiday Tour, Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar Alicia Foxx high fives a sailor durg the USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) during a visit to the ship as part of the USO Holiday Tour, Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine challenges Chef Robert Irvine to a cooking challenge during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, speaks to soldiers and airmen from Atlantic Resolve Forces before the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform during the chairman's Holiday Tour for service members at Advisory Post Lightning, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar "The Miz" speaks to service members at the base dining facility before the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine performs during the chairman's Holiday Tour for service members at Advisory Post Lightning, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Soldiers hold the American Flag during the USO Holiday Tour at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine boards a CH-47 Chinook Helicopter to move to Operating Base Fenty to meet with and perform a variety show with service members, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine speaks to an Australian airman during dinner with troops at the base dining facility at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann autographs a boot following a performance during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine has lunch with soldiers following the USO Holiday variety show at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine walks with soldiers following the USO Holiday variety show at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine rides in the back of a CH-47 Chinook Helicopter to move to Operating Base Fenty to meet with and perform a variety show with service members, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Chef Robert Irvine rides in the back of a CH-47 Chinook Helicopter to move to Operating Base Fenty to meet with and perform a variety show with service members, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Soldiers wait for the arrival of the USO Holiday Tour at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Secretary of the Army Dr. Mark T. Esper and his wife, Mrs. Esper, attend the USO Biggest Tour at The Anthem in Washington D.C., Sept. 12, 2018. Comedian Adam Devine hosted the show with Chef Robert Irvine and several military leaders across all branches and the band Florida Georgina LIne performed at the event. (U.S. Army photos by Staff Sgt. B. Nicole Mejia)

Chef Robert Irvine, comedian Adam Devine, and wrestler Gail Kim, perform during the USO Holiday Tour for service members at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Actor Adam Devine challenges service members to a pushup contest while performing during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar "The Miz" and actor Adam Devine pose for a photo with soldiers at Operating Base Fenty, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)