After sixteen Emmy’s and 33 years behind the Late Show desk, David Letterman is hangin’ ’em up for good. Letterman who will be replaced by late night funnyman Stephen Colbert this September will film his final show on May 20th. Over the course of the next 2 weeks, David will have a lot of old friends stop by the Late Night studio including last nights appearance by Adam Sandler who dropped by to sing Dave a farewell song.