Complex sentence: They are probably most commonly known for their appearance on the television show Spin City's season 3 episode "Internal Affairs", performing their song "Everybody get's what they deserve" in the ending of the show infront of the Flat Iron Building in Manhattan.
Split into simpler sentences: They are probably most commonly known for their appearance on the television show Spin City's, 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 Flat Iron Building in Manhattan.