No, didn't get to see them live, only found out about them after the fact. That's the other thing about Burning Man, no matter how much you see, after you come back you see hundreds of photos from other people that make you go "holy shit, how did I miss that". Burning Man is a kind of a super-saturated solution of strange people, and crazy stuff crystallizes out of it all over the place :)
You should try to come next year! 2013, here we go!