Playlist Central

Are you a fan of Luke the Drifter. No? How about Camille? Mimi? Never heard of 'em? Well, chances are you own an album by them -- or at least by the artists who created these alter-egos: Hank Williams, Prince and Mariah Carey, respectively. With her new Sasha Fierce persona, Beyonce is the latest artist to become afflicted with Musical Personalities Disorder, an epidemic that's hit the hip-hop community especially hard (Slim Shady anyone?) but that's run rampant in the music industry for years.