Comedian Norm Macdonald performs his favorite stand-up joke of all time (written by David Letterman) as he closes out his stand-up performance on The Late Show with David Letterman on May 15, 2015.
Comedian Norm Macdonald performs his favorite stand-up joke of all time (written by David Letterman) as he closes out his stand-up performance on The Late Show with David Letterman on May 15, 2015.