I was just fooling around with the piano and Todd [Phillips] was like, 'Hey there's a great spot in the movie [The Hangover] where we need a little bit of a breath in the narrative. You should write a song and stick it in there.' And I was like, 'Well, what should the song be about?' And he said, 'The tiger.' 'Oh, okay.' So I went off and I wrote this song. I came back and Todd and I tinkered with it a little more and then we shot it right then. It all happened in a day.

First there was the New Hampshire primary, and we had nearly a year leading up to it. And now, look! Three primaries in one weekend! How many of these things are they going to have?

I mean they [ Bradley Cooper, Zach Galifianakis] are both just really good guys and also they're both extremely funny in very unique ways. We made each other laugh an awful lot, and that goes a long way. And we also went through some hard times. I mean it was hard to make this movie [The Hangover].

There really aren't any deletes [in The Hanover movie]. There's like one or two deleted scenes but they're not important or meaningful scenes.

People who grew up in New York City or Los Angeles tend not to even understand what goes on in the rest of the country. I'm really glad to have grown up in an environment where I actually was kind of a weirdo because I was obsessed with comedy and movies and stuff.

I wish there was a way to know you were in the good old days before you actually left them.

Sometimes you just create a joke out of thin air in the editing room. So I'm really glad I've had that experience. It gives me a little more confidence in front of the camera.