What episode does Peter run from the back of a concert hall to punch out the performer?

It was a flashback of Peter's jealous antics There's 3 of 4 videos: 1. Louis comments on how handsome Hugh Grant is on the big screen, and Peter rips the screen apart. 3. Some Vegas style performer points out to the audience from his viewpoint showing his arm extend saying "This one's going out to all the ladies!" As he points across the audience, Peter runs does the aisle and punches him out. Thanks in advance for those who know, can't find it on youtube or google.