Sean Lennon, David Crosby, Graham Nash Occupy Wall Street

here's a video of Sean and Rufus Wainwright at Wall street. Sorry, it takes a long time to get to the actual playing, if you wanna skip all the stuff before go to like 8:43, that's when they start playing.
head's up: it's a Madonna song :( yah I know, what has this 'material world' come to?! :) haha you'll get the 'material world' thing once you see the vid!