Tops and Blue
U.S. Air Force 1stt Lt. Robert Doyle of the 4th Space Launch Squadron at Vandenberg Air Force Base, Calif., sings a solo at the Tops in Blue 2011 world tour at Omaha Music Hall in Omaha, Neb., on July 6. The tour this year is themed "Rhythm Nation" and features songs from the past and present that helped shape our country's history. (U.S. Air Force Photo by D.P. Heard/Released)