Cheryl and Rihanna plan duet

Singers said to be working on new project together

Cheryl and Rihanna have both apparently made space in their diaries to get together in the studio to record a new single together.

"They first spoke about a collaboration at the Brits and it's all still planned," a source told The Sun.

"They both want to do it. It's not a case of if, it's more when."

As well as exciting music plans, Cheryl is starring in new movie What To Expect When You're Expecting alongside Jennifer Lopez and new friend Cameron Diaz, who she wished a happy birthday via Twitter yesterday.

Ruth Langsford and Eamonn Holmes Strictly

Eamonn Holmes Opens Up About Ruth Falling Victim To The 'Strictly Curse'

ant mcpartlin, strictly come dancing, Lisa armstro

Ant's Wife Gives Big Hint Their Marriage Is Stronger Than Ever After Marriage Woes

Coronation Street Death

There Will Be A Shock Death On Coronation Street Tonight

Blue Nun This Morning

WATCH! Holly Willoughby Downs Wine As This Morning Takes Bizarre Turn!