Britney Spears poses in nothing but a bra and underwear after

The “Circus” singer’s video comes one day after she celebrated her birthday alongside her mother, Lynne, and her brother, Bryan.

Britney Spears Spotted Bra-Less During Late-Night Fast-Food Run

Britney Spears Spotted Bra-Less During Late-Night Fast-Food Run

Britney Spears strips down to nothing but a towel in a new photo

Britney Spears, Teen Queen: Rolling Stone's 1999 Cover Story

Britney Spears flaunts her teeny waist in barely-there lingerie as

Britney Spears shares racy video as she models lingerie in hat and

Britney Spears Sizzles in Bra and Panties—See the Pic!

Britney Spears strips down to nothing but a towel in a new photo

Britney Spears Poses Half Naked in Bed After Her Birthday Weekend

Britney Spears shows off her cleavage and washboard abs

Britney Spears poses in nothing but a bra and underwear after

Britney Spears ditches underwear to model sexy dresses on Halloween

Britney Spears concerns fans as she dances in her underwear with

Britney Spears writhes around in underwear in her latest music video