Britney Spears has begun work on her eighth studio album.
The Gimme More hitmaker is teaming up with writer Elijah Blake - who has previously worked with stars including Rihanna and Usher - for the follow up to 2011's Femme Fatale and the songwriter thinks fans will be "surprised" by the tracks.
Blake said: "I think her fans will be surprised by it.
"I would say it's definitely the 'unexpected' Britney in so many ways, in that she's playing with new textures and stomping on new grounds and genres."
He also tweeted: "I've definitely had the pleasure of starting on something I think is going to be big with her."
No further information about the record has been released, but Spears (31) was previously spotted in a recording studio with Rodney 'Darkchild' Jerkins. Blackout producer Danja has also previously confirmed he would work with her again.
Spears - who is also a judge on The X Factor in the US - also teased fans about a new album in October, when the fifth anniversary of her album Blackout trended on twitter.
She teased: "Blackout 2.0?"
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