Though his mama told him not to play with guns, he shot a man in Reno "just to watch him die." His first band, while serving in the Air Force in Germany, was called the Barbarians. More than any other country artist, Johnny Cash understood the predicament of the outlaw; his prison concerts at Folsom and San Quentin helped underscore the notion that the inmates weren't all monsters, but men who'd simply made bad decisions. His infamous "middle finger" photo, taken at San Quentin by rock photographer (and fellow rebel) Jim Marshall came in response to a request to pose for a shot for the warden. Years later, when Cash was in the midst of a career revival engineered by producer Rick Rubin, they ran an ad in Billboard that featured the photo and a feisty caption thanking "the Nashville music establishment and country radio for your support."