COUNTRY FUN Songwriter Bob Dipiero and country musician Kix Brooks perform a song for U.S. Marines during a visit to Camp Hanson in Afghanistan's Helmand province, Dec.16, 2010. Dipiero and Brooks are on a USO holiday tour hosted by U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, and his wife, Deborah, are hosting the tour also featuring comedians Robin Williams, Lewis Black and Kathleen Madigan, and Tour de France champion Lance Armstrong in the Central Command area of responsibility. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 598842-E-MNK75-833.jpg Photo Gallery