NEW YORK, NY - SEPTEMBER 12:  Recording artist Beyonce watches Rafael Nadal of Spain and Novak Djokovic of Serbia play during the Men's Final on Day Fifteen of the 2011 US Open at the USTA Billie Jean King National Tennis Center on September 12, 2011 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Clive Brunskill/Getty Images)