Spinny roundy Head thing

So I'm on the subway right, in Times Square, and we are about to catch the train and we stop and there are these blokes with hats, and Michael Jackson is singing.  Then we watch in amazement as they perform an acrobatic thing and lie on the floor in funny shapes. They call it "break-dancing", its pretty fabulous. Click here if you wish to watch it.

Oh, I'm in New York by the way.