Britney Spears Promises New Music "Soon" As Teases "Out Of This World" Sound

14 August 2013, 13:06 | Updated: 14 August 2013, 13:09

The 'Criminal' star's new song has been hailed by as she promises fans they won't wait much longer.

Britney Spears has promised fans she has new music coming a lot sooner than they expect.

The 'Ooh La La' singer responded to a fan-led Twitter trend of "We Are Ready Britney" by revealing that a new song is not far away from being unveiled.

"Patient kiddies!" Britney tweeted yesterday (13th August). "It's coming MUCH sooner than you think ;)."

The 'Criminal' singer also had high praise from from her new single, who described the unannounced track as being "out of this world".

"The song @BritneySpears did with #williamORBIT is fabulous and out of this world… #THEbritneyARMYwillBEproud," tweeted this week, to which Britney herself later replied: "IAmWill @WilliamOrbit That song is from another planet. I hope Earth is ready!!!!"

Check out a picture of Britney with her sons at the premiere of The Smurfs 2 below (Credit: Getty):

The 'Scream & Shout' rapper is serving as an executive producer on Britney Spears' new album, her eighth studio record to date, which is expected to see release by the end of this year.