The big-lipped, loud-screamin’ Steven Tyler started singing in his church choir and later played in his school’s marching band (he was compelled to pin up his hair for performances, no joke). Though Tyler plays harmonica, keyboards, guitar, and percussion, he insisted on becoming the frontman when he joined his first band, the Strangeurs. His band of the last 40 years, Aerosmith, are still (or should we say again) making music together; their megahits include “Dream On,” “Walk This Way,” and “I Don’t Want to Miss a Thing.” Tyler’s contributions as a judge on American Idol ranged from the downright weird to the wildly inappropriate (and hilarious).