Deep Inside The Feud Between Joan Rivers And Miss Piggy

    Who knew they had such beef with each other?

    Remember when Joan and Miss Piggy were best friends?

    Who knew their back-stabbing went as far back as the Tonight Show or when Joan auditioned for The Muppet Show?

    Or how about their Garry Marshall-produced sitcom Bjornbots?

    Find out their entire backstory on E!'s Behind The Feud below:

    Find out what happens when Joan and Miss Piggy reunite for the first time and catch the Muppets when they take over QVC on March 16th.