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12 February 2013, 11:26
The 'Tik Tok' singer reveals all to Capital FM about her intimate encounters with her fellow female US star.
Ke$ha has confessed that she has seen 'I Kissed A Girl' singer Katy Perry naked.
The 'Die Young' singer told Capital FM that the pair have been close friends for many years and picked the female star ahead of former husband Russell Brand in a game of 'Ke$-her or Ke$-him".
"They're both hot but I wouldn't get them at the same time and probably not in the same room," she declared. "This is too hard, I don't know.
"I'd probably ke$-her – I'm friends with her. We've seen each other naked it's fine."
Asked about the experience she continued: "It was cool. We've been friends for like years."
The singer then joked about taking part in pillow fights together and stated there was no winner.
She said: "We tied."
Watch Ke$ha speaking to Capital FM about seeing Katy Perry naked below:
Meanwhile, Katy's outfit at the Grammy Awards 2013 this past weekend defied an apparent ban on revealing outfits as she hit the red carpet wearing an eye-popping lime green dress.
The singer was also in attendance at the event with her new boyfriend John Mayer and posed for pictures together backstage at the event.