This is a Canadian company La La La Human Steps [1] - recall your french because the flash site is Qubecois - en francais or for nonfrench speaking readers - their entry in wikipedia [2]
The Music is Lou Reed's I'm Waiting For My Man arranged by David Lang
Links:
[1] http://www.google.com/url?sa=t&source=web&ct=res&cd=1&url=http%3A%2F%2Fwww.lalalahumansteps.com%2F&ei=r6FwSc6lDJW6twfporHYCA&usg=AFQjCNGIjyejXpXeCa9SsUvyVaoKgx7q6w&sig2=cfeSKWIjUJWvK2Z4GdJwYA
[2] http://en.wikipedia.org/wiki/La_La_La_Human_Steps
[3] http://realneo.us/blog/susan-miller/dance-video-of-the-day-4
[4] http://realneo.us/content/dance-video-day
[5] http://realneo.us/blog/susan-miller/aerial-dance