Stretching the topic a little, but afaik this is the closest that MB comes to a thread dedicated to dance - which seems pretty odd for a music forum.
This vid is less about dance moves, but has that preparation - expectation - costume - scenary stuff that often goes with a dance performance irl. Oh, yes, and music too:-
Always feels good when you have no idea what you are looking at, so not to spoil that pleasure, the answer 's in the spoiler:-