Sometimes fashion houses lead, and sometimes they follow. In this case, it's clear that Lanvin has decided to follow the gaggle of miscreants on YouTube who insist on posting videos of their horrible dancing to top-40 hits. At least the models in Lanvin's spring collection look good doing it. They shake it through the entire 2011 fall collection in some rather uncoordinated dancing to Pitbull's 2009 hit, "I Know You Want Me." They're also dancing in the print ads. Frankly, there's simply not enough wacky here to be another Numa Numa, not enough decent dancing to be the Evolution of Dance, not enough politics to be the next Dancing Auschwitz, and not enough cute to be Weetabix. I will say it's better than the usual runway video, but not by much. UPDATE: The choreography is from the video game Dance Central.