This might be a slim catergory, but I wonder what people think are the funniest songs and musical moments in comedy shows? For me it's either Alan Partridge's Abba medley in Knowing Me, Knowing You, or the Gob/Franklin duet in Arrested Development: "It aint easy being white/It aint't easy being brown. All this pressure to bright/I've got children all over town."
Any other great musical moments in comedies?