Cara Delevingne Launching Pop Career With Pharrell?

Pharrell Williams has already worked with pretty much everyone in the world of pop, so it's not surprising that he's started to cast his net a little wider.

And it's reported that Cara Delevingne is not content with being one of the world's top supermodels and developing a budding acting career - but is now planning a sideline as a pop star.

Yep, The Sun claims that the two A-listers have laid down a track together - and have been hunkered down in Paris this week secretly recording a video to go with the song.

A source told the tabloid: "They're going to release the song without warning, complete with video and global launch.

"They seem to have formed a great little writing collective and apparently it's a huge song."

Cara was spotted at Pharrell's show in Paris on Thursday, when she joined him on stage as a backing dancer during his mega-hit Happy.