Shadow Puppets Gone Wild

Just a quickie to tide you over. I've been sick as a dog these past few days and am just starting to feel like I'm recovering. Had to go back to work today because I could just feel it all piling up. Sad huh? Anyway, here's some cool shadow puppetry by a group called Pilobolus on the Conan Show. Is this modern dance, acrobatics or street art?