David Letterman Turns Into Andy Kaufman

Photo: Courtesy of CBS and Defamer.com

Okay, can anyone at all explain to us why Letterman did the exact same jokes in his monologues two nights in a row? It's some kind of crazy meta-comedic stunt, right? To see if we're actually paying attention? Whatever, the video is mesmerizing.

Stop David Letterman If You've Heard This One Before [Defamer]