Jumping, on the DAM square (it's more cicle-ly than squarish though?) in Amsterdam. It's a weird subset of hiphop moves, on a 4 basedrum-per-4-count house music.
And then, that evolved to gabber on faster house music. It sounded like this:
Which, I think, then sped up and evolved to hakken on rave music. I can't quite explain it, you need to experience it:
Here is a cleaner version of hakken:
Is that still music? It's a workout for sure, though!