I stumbled upon this dance video on reddit and can't stop watching it. This is Lucifer crew dancing at the 2013 Dance@Piece show in Japan.
Don't know why they are called that, but they definitely are wicked. Some of the tightest, cleanest choreo I've ever seen from a house dance crew. Great musicality and beautiful movement. And they are just killing the beat the whole time.
Other dope Lucifer videos:
I need to learn more about house dance in Japan!