You never want to get on Miss Piggy's bad side.
Joan Rivers learned this the hard way when the 80-year-old comedian ended up in a fight with the diva Muppet, which left Rivers with a face full of cake.
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Both Rivers and Miss Piggy were attending the QVC pre-Oscars party when they got into a heated fight.
Check out the video for all the delicious details of their frosting-filled fight.
The Muppets will be appearing on QVC on March 16 to promote their upcoming film Muppets Most Wanted.