50 Sexiest Music Videos

Before the shaved head, two kids, reality show, and inexplicable English accent, Britney Spears was one of the hottest babes in the universe? Don't believe us? Well, take a little trip in the Wayback Machine and peep the video for I'm A Slave 4 U, the first single from her self-titled third album. Produced by Chad Hugo and Pharrell Williams, it's by far the starlet's most risqué video ever, featuring her impeccably toned, sweat-drenched body bumping and grinding in some sort of post-apocalyptic sauna. Slave is where Britney started morphing from girl next door to all-out sex demon, and it's a beautiful snapshot of what things were like before they went horribly wrong.

Check out the video here!