Juicy J has revealed that he will feature in Katy Perry's next video - and it's set to be a huge affair.

The rapper teamed up with the US songstress for the song 'Dark Horse', which Perry released as a single from her 2013 album 'Prism'.

The pair theatrically performed it at the Grammy Awards on Sunday (January 28) and speaking at the event, Juicy J teased the song's video.

He told Billboard: "It's a movie, man. It's a major motion picture. I can't really tell you because it's definitely going to be a surprise, but I'll tell you this much right here: you've seen her other videos, this one's gonna be just as big."

The rapper added: "Everything she does is like grade A."

'Dark Horse' meanwhile follows on from Perry's previous singles 'Roar' and 'Unconditionally'.