Late Show with David Letterman S1E2 · Robin Williams, John Mellencamp, Jonathan Estrata

Late Show with David Letterman

Season 1 · Episode 2 · Robin Williams, John Mellencamp, Jonathan Estrata

Dave's worst moment on last night's debut: his fake tooth fell out (the video is repeated several times in slow motion); a four-year-old geography expert and cheese lover names states on a U.S. map.