This singer -- who fronted one of the biggest classic rock bands to ever exist, which was fraught with internal tensions and loads upon loads of drama -- is known for her ethereal style, her smoky voice and her gypsy look. Judging from her buttoned-up and bouffanted yearbook photo, she was straight-laced before she set off on her musical career.

The vocalist, now 64, took to the rock and roll lifestyle like a fish to water, joining the band with her then-boyfriend and eventually developing a cocaine habit. She was all sorts of leather and lace when it came to her personal style, thanks to her flowing dresses.

Her husky pipes are definitive of her onetime band's sound, and she also enjoyed one helluva successful solo career, too. Think you know who we're talking about?