Britney Spears flashes her figure on stage as pals share fears about her new boyfriend

Britney Spears finished up an incredible year last night with a performance at the Jingle Ball.

The Slumber Party babe performed a selection of her biggest hits to a sell-out crowd at the festive concert in New York.

She showed off her stunning figure in a skimpy leotard as she pulled off some impressive dance moves with pals Tinashe and G-Eazy.

Her performance came as it was claimed that friends of the star are concerned her new boyfriend Sam Asghari is using the legendary star for fame.

More photos here