In terms of the creative side of it, its really been a thing where you come up with the funny stuff is usually at a bar or out talking to people or whatever. – Trey Parker
No, writing musicals is the hardest thing in the world. And it was really funny, because I remember when the South Park movie came out, there were some critics that said, Well its obvious that in order to get it to be 90 minutes they filled some time with music. – Trey Parker