Sean Michel, ''God's Gonna Cut You Down'' (Season 6)
I have to chime in for Sean Michel, the dude last year who, as he put it, looked like Fidel Castro, Osama bin Laden, Jesus or a homeless bum, and who sang a Johnny Cash song with some foot stomping thrown in for good measure. His image was so out-there, his personality so low-key (nearly comatose), and the song so cool and unexpected, it was so much fun! —Mo

Sean Michel's audition: Watch it on YouTube