Anna Wintour is a dork!
This just f*cking made our day!!! Anna Wintour - the fashion industry's ultimate icon and former Editor of Vogue - falling off her chair at the US Open...

She really is no better than the rest of us!

The US Open is a hot spot for stars, more sporty celebs in attendance: Alec Baldwin, David Dinkins, Jesse McCartney, Jim Carrey, John Mayer, Nicole Kidman, Randy Jackson, Regis Philbin, Rihanna, Rupert Murdoch, Sally Field