Check out the photos you chose in 2007. There's Britney shaving her hair off at the beginning of the year, the Beckhams arriving in LA and Sienna Miller out for the premiere of Factory Girl in her pants.
Coming in at number nine is Britney Spears showing off a newly toned stomach as she leaves a dance class in April. She was working out in the months leading up to the release of her new album and video.