Katy Perry has revealed her desire to work with Bruno Mars.

The singer told E! News that she appreciates the US star so much that she wants to be like the 'Locked Out of Heaven' man.

The 'Roar' star praised Mars' "diversity", saying:

"I've always said I'd wanna collaborate with Rihanna, but I'd love to collaborate with Bruno Mars. I always say, 'When I grow up, I wanna be the female version of Bruno Mars', cause he's so wildly talented in showing everybody that he has so much diversity in him."

Perry meanwhile added about her upcoming new album 'Prism': "I'm very proud of this record. It's very exciting. It's gonna make you dance just like the last one but it's a lot more self-reflective."

The singer is due to unleash the record on October 22 as she follows up her previous release 'Teenage Dream'.