Pop princess Britney Spears has confirmed her new single, OohLaLa, will be released on June 16.

The track, which will feature on the soundtrack for the upcoming Smurfs 2 movie, has made its way onto the internet.

Spears tweeted about the demo saying: "I heard an early demo of #OohLaLa smurfed its way onto the internet today :( The real version will be at radio and iTunes June 16th :) [sic]”

Speaking recently about working on a song for the animated flick Spears said: “"I have 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!"

The Smurfs 2 is due for release on July 31.