OK, folks, weigh in …
I’ll start us with three:
Family Guy, “This House is Freakin’ Sweet”: Upon inheriting a mansion, the Griffins find the household staff welcoming them with a song celebrating just how great it is to be stinking rich.
The Simpsons, The Burlesque House: Homer convinces Springfield not to tear down La Maison Derriere by kicking off this classic tune in which most of the town admits some interest in a little harmless naughtiness. The highlight — Nelson and the other bullies break into some barbershop, answering Bart’s “to shut them down now would be twisted” with “we just learned this place existed.”
Futurama, the finale of “How Hermes Requisitioned His Groove Back“: The Central Bureaucracy gets an unlikely dose of fun even as Hermes files a massive mound of random stuff in a couple of minutes. The highlight — Bender, who has been essentially reset with nothing to say other than “I am Bender, please insert girder,” says just that at a key point in the song.