Total Eclipse of the Ninjas.
Man, this was already the best video of all time, but this makes it so much more awesome. It’s like they hired all the gangs that didn’t make the cut to be in The Warriors. Although I have to say, this version definitely highlights the ephebophiliac overtones in a way I hadn’t previously noticed (I was distracted by the ninjas).
(Ganked with thanks from Wickedthoughts.)