I start with a comprehensive list of all the recent songs that have been big hits - and then I go down that list and see if I can come up with funny ideas for them. I can always come up with ideas, but not necessarily good ones!

One of the hardest things I've had to deal with in my career is keeping my material topical even though I only release albums every three or four years.

I decided that I wanted to be a voice on every animated cartoon in the history of the world - even shows that haven't been on the air for a very long time, that's going to be harder to pull off.

It doesn't take a military genius to see we'll all be crispy critters after World War III.

I'd rather clean all the bathrooms in Grand Central Station with my tongue than spend one more minute with you.

So I'm one of the few celebrities that got to do a repeat performance on 'The Simpsons,' which I'm very flattered by.

I'm a music fan, and I can listen to the radio, or music, without thinking, "How am I going to screw this up?" [Laughs] If I'm really actively trying to think of a parody, then I'll have my antenna out, and be a little more proactive about it.