Britney Spears has been showing off her curves in a fun video on Instagram.

The pop princess got into the spirit of summer, posting a clip of herself frolicking in a pool in a black and white bikini.

As she splashes around, Cyndi Lauper’s Time After Time plays.

Britney captioned the video: “Just chillaxing.”

The mum-of-two, who scooped the Millennium gong at last week’s Billboard Music Awards, also shared some shots of her new hairstyle.

She wrote: “A very much needed haircut.”