David Letterman's final show took place last night, and the tributes were pouring in from all over TV land. 

Another American television institution, The Simpsons, also got in on the act by issuing a short tribute to the legendary late night host, which he duly shared with his audience during the show last night. It even pokes a bit of fun at how long both of the shows have been on the air.

Via Uproxx