Michael Phelps On Colbert: Swimming, Ice Dancing And Getting Fat

Michael Phelps stopped by "The Colbert Report" to promote his book "No Limits."

In order to interview him, Colbert put his Emmy around his neck like a medal. He also promised Phelps he would teach him ice dancing so he has gold-medal chances in 2010.

Phelps also said that right now he is the least in-shape person in the world.

Colbert meanwhile, asked if goes through the motions of swimming, even when he's on land. "Is making love for you like doing the butterfly? Does a gun have to go off first?"