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?"