"Lazy Sunday" is a single and short film by American comedy troupe The Lonely Island. It was released on December 17, 2005, when it premiered on episode nine, season 31 of Saturday Night Live as the troupe's second Digital Short. Primarily performed by Andy Samberg and fellow cast member Chris Parnell, the song and accompanying music video follow the two comedians as they eat cupcakes from the Magnolia Bakery, buy snacks at a convenience store, and smuggle the food into a Sunday afternoon matinee of The Chronicles of Narnia.

The Lonely Island is an American comedy trio, formed by Andy Samberg, Jorma Taccone, and Akiva Schaffer in Berkeley, California, in 2001. They have written for and starred in the American TV program Saturday Night Live (SNL).