Whack! Union Suare Pillow Fight After-Party

Did you know that today is International Pillow Fight Day, and that New Yorkers can take part in the festivities in Union Square at 3pm? Now you do. Assuming you haven't succumbed to feather-force trauma, you can also come to the after-party at the nearby Hiro Ballroom, with bass-culture duo Hellfire Machina, electro DJ-producer Viking, and Girls & Boy's headmaster Alex English soothing your wounds with underground beats. Go to gbh.tv to get on the reduced-admission list