Britney Spears is said to be appearing on the official video for Pussycat Doll’s latest hit “When I Grow Up”. The said video will be directed by Joseph Kahn, the same guy who did Britney Spear’s Toxic video.

According to sources, the Pussycat Dolls are set to film the video after the 2008 MTV Movie Awards to be held on June 1. When I Grow Up is the first single off the group’s upcoming album Doll Domination.

For those old schoolers out there who are quite familiar with the sounds of the track, actually the song is sampled from a 1966 record from The Yardbirds, the song is called He’s Always There and was taken from the album Roger The Engineer.

Click here to listen to When I Grow Up by the Pussycat Dolls