Britney Spears has recorded a new song for The Smurfs sequel.

The pop star will release Ooh La La for The Smurfs 2, which hits cinemas later this year (13).

She says, "I always loved the Smurfs as a kid and now my boys are the biggest Smurfs fans ever. I wanted to surprise them with a song in the movie. I know they'll think it's Smurftastic!"