Het liedje heet "Everybody Gets What They Deserve" van The Churchills.
De aflevering heet "Internal Affairs". Het is aflevering 16 van seizoen 3.
Zie ook http://www.youtube.com/watch?v=UDjhcXjdiPE en http://www.imdb.com/title/tt0707031/?ref_=fn_al_tt_1
Toegevoegd na 9 minuten:
Dit is leuk, van de Engelse Wikipedia-site: "The Churchills are an indie pop/rock foursome from the New York/New Jersey area. They are probably most commonly known for their appearance on the television show Spin City, during season 3 in the episode titled "Internal Affairs". They performed their song "Everybody Gets What They Deserve" at the end of the show in front of the Flatiron Building in Manhattan."!!!