NewYorkRawVideos, with video (05:44):
Recorded October 23, 2011, 6pm. Sean Lennon, his girlfriend Charlotte Kemp Muhl, Rufus Wainwright, Dustin Hamman, and others perform an impromptu cover of "Material Girl" by Madonna ....but not until Josh Fox of the film "Gasland" talks to the crowd about hydraulic fracturing, or "fracking". They dedicate the song to Ben Bernanke, and Hank Paulson.H/t to Chris Bowers.
Seemed they picked this song only because of the verse,
"Living in a material world" which they repeat over, and over again.