22 Season
4252 Episode
Late Show with David Letterman - Season 18 Episode 137 George Clooney, Mastodon
Dave welcomes actor George Clooney and musical guest Mastodon.
- Year: 2015
- Country: United States of America
- Genre: Talk, Comedy
- Studio: CBS
- Keyword: late-night show
- Director:
- Cast: David Letterman, Paul Shaffer, Alan Kalter