Country Music performers Kellie Pickler, her husband Kyle Jacob, and Dave Baker perform for deployed service members at bases across Iraq, Dec. 25, 2016. Dunford, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across the globe. This year’s entertainers were Chef Robert Irvine, Wrestler Gail Kim, Musicians Kellie Pickler and Kyle Jacobs, and Roastmaster Jeff Ross. (DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro/Released)

081217-N-8825R-010 KANDAHAR, Afghanistan (Dec. 17, 2008) Country singer and former American Idol contestant Kellie Pickler performs at the USO Holiday show in the Morale, Welfare and Recreation multi-purpose tent of Kandahar Air Field. Pickler is part of a variety entertainment show sponsored by the USO for troops stationed in Kandahar during the 2008 holiday season.

Country music artist Kellie Pickler, retired Chicago Bear middle linebacker Brian Urlacher, actress Dianna Agron, Deanie Dempsey, Gen Martin Dempsey, comedian Rob Riggle, actress Meghan Markle, Washington Nationals pitcher Doug Fister and USO President Dr. J.D. Couch pose for a group photo prior to launching the Chairman's USO Holiday tour and taking off from Andrews Air Force Base, Md., Dec. 5, 2014. (DOD photo by D. Myles Cullen/Released)

Country musician Kellie Pickler greets soldiers at Forward Operating Base Pasab, Afghanistan, Dec. 24, 2013. Pickler performed concerts and met with soldiers during her visit to Afghanistan. (U.S. Army photo by Cpl. Clay Beyersdorfer) Unit: ISAF Regional Command South

Kellie Pickler, American country singer, in concert, Jacksonville, Florida

Kellie Pickler, American country singer, in concert, Jacksonville, Florida

KANDAHAR, Afghanistan: Country singer and former American Idol contestant Kellie Pickler performs at the USO Holiday show in the Morale, Welfare and Recreation multi-purpose tent of Kandahar Air Field on Dec. 17, 2008. The singer was part of a variety entertainment show which included comedians and other singers and was put together by the USO for troops stationed in Kandahar for the 2008 holiday season. ISAF photo by U.S. Navy Petty Officer 2nd Class Aramis X. Ramirez (RELEASED)

Kellie Pickler singing

Country music singer Kellie Pickler sends a special holiday greetings to the Kandahar Military Police dispatch after the USO Holiday Tour show at Kandahar Airfield, Afghanistan on Dec. 25. (U.S. Army Photo by Staff Sgt. Rob Oson)

Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey, country music artist Kellie Pickler, retired Chicago Bear middle linebacker Brian Urlacher, actress Dianna Agron, Gen Martin Dempsey, comedian Rob Riggle, actress Meghan Markle and Washington Nationals pitcher finish a USO show in Vicenza, Italy, Dec. 7, 2014. (DOD photo by D. Myles Cullen/Released)