Year: 2001
Director: Francis Lawrence

Britney has long been surpassed as pop's premier hot chick, but at least we'll always have this: A hot and sweaty clip that oozes with the singer's (then) newfound sexuality. That small of her back? *Bites fist* Damn, Britney look'ded good.

The video came out three weeks after Spears debuted the song at the MTV VMAs in a live performance that memorably included an albino snake.