Katy Perry singing backing vocals for Miley Cyrus

London, Mar 01: American singer Katy Perry is riding high after finding herself singing backing vocals for teen sensation Miley Cyrus.

The tracks that the 24-year-old singer tested for her One Of The Boys album were given to the Hanna Montana star, with Perry’s vocals left on.

"My vocals are actually on Breakout. I thought: ``Yes, I`m singing on a Miley single``," the Daily Star quoted her as telling Bliss magazine.

Meanwhile, the ‘I Kissed A Girl’ singer launched into a bitter rant against her ex-boyfriend during a London gig.

While on stage at Koko in Camden she began talking to the audience about Pinocchio and seemed to compare an ex-boyfriend to the kids’ story-book character.

According to the Mirror Katy told the screaming audience: “I didn’t know when I was a six-year-old kid watching Pinocchio that when I turned into an adult, I’d end up dating a Pinocchio.