Many musicians take the opportunity of a television appearance to guarantee that they will never appear on television again, because the greatest rock stars are the ones who tell everyone to go to hell.
5Fear Destroys Saturday Night Live
The LA hardcore band Fear was invited to perform on SNL in 1981 at the behest of John Belushi, who above all else was known for his rational suggestions. They greeted the New York audience by declaring "It's great to be in New Jersey!" before launching into screaming power chords delivered by three obvious drug addicts and a man wearing a dress.
Oh, and they brought a crew of moshers along with them (including Ian MacKaye of Fugazi) who knocked down everything within swirling fist range. They were not invited back.