Susan Sarandon Joins Of Montreal Onstage, Spanks Pigmen, WTF?

This crazy appearance occurred last night during an Of Montreal concert at the Highline Ballroom in Manhattan. Susan Sarandon has always been super cool, but this is just amazing! Beyonce's sister Solange Knowles also turned up during the set to perform a duet of the Jackson 5's "I Want You Back". Oh how I wish I had been there!