Britney Spears shakes bare butt and insists it's 'the real deal' after dad Jamie files to end star's conservatorship

BRITNEY Spears shook her bare butt while only wearing a thong and insisted it’s “the real deal.”

The 39-year-old flaunted her behind just days after her dad Jamie Spears filed to end her conservatorship.

Britney showed off her bare butt in a new Instagram videoCredit: Instagram @britneyspears