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)