Relevant lesson from the best teachers you could have for New York slang[1];-) It's the Beastie Boys teaching their Japanese interviewer how to say: "Lemme have a slice of pizza.". It's a funny and entertaining interview despite the interviewer being a bit cringe-worthy. In my opinion the interview is also worth watching, because it's a good lesson for how you treat a dialog partner that is nervous and overwhelmed in a respectful way.
Thinking of music and NYC also Kenny Gioia comes to mind. After having watched tons of his Reaper instructional videos I think I dreamt in a thick New York accent;-)