Late Show with David Letterman - Season 18 Episode 85 Neil Patrick Harris, Mike Birbiglia, Neil Peart
Dave welcomes actor Neil Patrick Harris of CBS' "How I Met Your Mother," comic Mike Birbiglia and drummer Neil Peart performs.
- Genre: Talk, Comedy
- Studio: CBS
- Keyword: late-night show
- Cast: David Letterman, Paul Shaffer, Alan Kalter