Demetri Martin brought his guitar to "Late Show w/Stephen Colbert" and performed some jokes

Demetri Martin was the guest comedian last night on The Late Show w/Stephen Colbert and he brought his guitar with him to deliver some of his classic one-liner thoughts and observations. While Martin's joke were as sharp as ever, it took him a minute to get the crowd on board with the jokes. Martin is about to embark on a national tour called the "Wandering Mind Tour" which will kick off at the top of the new year.