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 Poses Half Naked in Bed After Her Birthday Weekend

Britney Spears goes nearly naked as she poses in just a lace thong

Britney Spears & Sam Asghari: Photos – Hollywood Life

Britney Spears transforms into a mermaid for pool day with her

Kylie Jenner poses for stripped-down snap in Spanx bra

Britney Spears concerns fans as she dances in her underwear with

Britney Spears Repeatedly Says 'Good Morning' While Nude In Bed: Watch

Britney Spears shares racy video in just her underwear as she