Few male country artists have had as many different hairstyles as Dierks Bentley. He debuted as the curly haired guy from Arizona in 2003, but later shaved, straightened, grew out and now trimmed his dark hair. It's a little long and wavy on top in this picture from his Feb. 4 performance at the Hard Rock Cafe in Boston, Mass., but close to his head on the sides. The singer's facial hair also continues to enjoy many transitions, from clean-shaven to a rugged stubble to this new full beard and mustache. While Bentley's appearance varies from album to album, his sound doesn't. On his newest album, 'Home,' he and producer Brett Beavers once again find a mix of country and bluegrass that his fans will appreciate.