Spears makes Pussycat Dolls cameo

Britney Spears is to make a cameo appearance alongside the Pussycat Dolls in their new video.

The 'Toxic' hitmaker joined the girl group at the shoot in Burbank, California on Wednesday, according to Access Hollywood.

The promo is for the band's latest single 'When I Grow Up', from their forthcoming second album.

It is the second time Spears has performed with the 'Don't Cha' hitmakers - she previously joined them on stage during a private gig at her older brother Bryan's birthday party in 2004.