Late Show with David Letterman S20E149 · Will Arnett; Clive Davis; The Avett Brothers

Late Show with David Letterman

Season 20 · Episode 149 · Will Arnett; Clive Davis; The Avett Brothers

From "The Millers", actor Will Arnett; author of "The Soundtrack of My Life", Clive Davis; musical guests The Avett Brothers.