The Itchy & Scratchy Theme Song is the theme song to the cartoon series Itchy & Scratchy, first heard in the episode Krusty Gets Busted. There were several different versions of the theme song. The first one is sung by studio singers whose voices were sped up to make it sound more cartoony. The second version was heard in the aforementioned "Itchy & Scratchy & Marge" episode when Marge demanded that the violence be toned down. The third version was a ballad-like end credits version of the song with the lyrics re-written in past tense heard in The Front. The fourth version was heard when Poochie was briefly added to the show in the episode The Itchy & Scratchy & Poochie Show.