U.S. Air Force Gen. Paul Selva, center, Vice Chairman of the Joint Chiefs of Staff, performs with Craig Morgan, country music singer and songwriter, during the United Service Organizations (USO) tour April 1, 2019, at Al Udeid Air Base, Qatar. Selva hosted the tour alongside celebrities and performers including Morgan, Robert Irvine, and professional athletes. Each year the USO produces more than 50 entertainment tours, bringing hundreds of individual shows to American service members around the world.