‘I Kissed a Girl’ singer Katy Perry has said if she could kiss any girl in the world, it would be Miley Cyrus.

She told Steppin’ Out magazine: “She’d be the lucky girl. It’s cool to hear through the grapevine that Miley Cyrus has my song as her ring tone.”

Katy will come face to face with the Hannah Montana star at the Teen Choice Awards in August and joked: “Maybe we’ll have another Britney-Madonna moment on stage.

“How hilarious would that be? I don’t think it would help her career. However, it would definitely help mine!”

But unlike Miley, who wears a purity ring to symbol her abstinance, Katy’s promise ring from Gym Class Heroes frontman boyfriend Travis McCoy means something else entirely: “[People] think the promise ring means no sex! No, the promise ring is just a promise that he’ll get me another ring. A better ring!

“Seriously, it’s not one of those ‘no sex’ promise rings. That kind of went out the window when I was 17 years old.”