The singer is cooking up plans to get revenge on husband Russell Brand for posting a less-than-flattering picture of her online.
The British comedian snapped Perry while she was lying in bed without any make-up on and quickly uploaded the picture to his Twitter page.
The media quickly swooped on the photo so that by the time Brand removed it, it was too late.
Perry, 26, told The Mirror the battle is not over. "He thought it was hilarious, but as you can imagine, I wasn’t too impressed. I’m currently plotting my payback,” she said.
She added they plan to start baby-making in the not too distant future. "We want a big family so we need to get a move on," she said. "Watch this space!"