Steve Martin has been on The Late Show more times than we can count, but tonight he tried to get out of his appearance. Instead of calling it in before the show started taping, he tried to do it after he sat down on the couch. He apologized to David Letterman that he was unable to be on the show because he was in Europe. Then he got up and walked out, but one of the staffers from the CBS show stopped him and he miraculously made it back from overseas before you could say that he is a wild and crazy guy.