Plot: Dave welcomes comedian Kathy Griffin, actor Simon Helberg from the CBS comedy series "The Big Bang Theory," and musical guest Joseph Aurthur.
Late Show With David Letterman - Season 19 - Kathy Griffin, Simon Helberg, Joseph Arthur (Episode 13)
Episode Aired On:
Thursday, January 19 2012
12 years ago
Thursday, January 19 2012
12 years ago