MerryMadagascar

Chris Rock has the kind of status as a comedian that allows him to work on any project he wants. He produced the documentary Good Hair, he's writing a book, and he has been working on back-to-back film shoots.

Tuesday at 8 PM on NBC, you'll hear his voice in Merry Madagascar, playing Marty the zebra for the third time, along with returning regulars Ben Stiller, David Schwimmer, and Jada Pinkett Smith. He's confident it's not the last time he'll voice Marty, either, with Madagascar 3 in the works.

So why does a guy who can do anything he wants spend time in front of a microphone pretending to be a cartoon animal?

"Money," he says jokingly, speaking on a conference call on Wednesday. "No, no they're good. You realize as you get longer in this business, the only thing that keeps you working is doing good stuff. You know, I mean the box office is great, too, but if people don't like what you do the moment the box office isn't fair, they don't want to work with you anymore."