Serbia's Novak Djokovic, center, performs South Korean rapper PSY's " Gangnam Style" dance with volunteers on a court after a prize presentation for the men's singles final match of the China Open tennis tournament in Beijing Sunday, Oct. 7, 2012. Djokovic won the China Open tennis tournament, defeated Jo-Wilfried Tsonga 7-6, 6-2. (AP Photo/Andy Wong)

Associated Press
Serbia's Novak Djokovic, center, performs South Korean rapper PSY's " Gangnam Style" dance with volunteers on a court after a prize presentation for the men's singles final match of the China Open tennis tournament in Beijing Sunday, Oct. 7, 2012. Djokovic won the China Open tennis tournament, defeated Jo-Wilfried Tsonga 7-6, 6-2. (AP Photo/Andy Wong)
Serbia's Novak Djokovic, center, performs South Korean rapper PSY's " Gangnam Style" dance with volunteers on a court after a prize presentation for the men's singles final match of the China Open tennis tournament in Beijing Sunday, Oct. 7, 2012. Djokovic won the China Open tennis tournament, defeated Jo-Wilfried Tsonga 7-6, 6-2. (AP Photo/Andy Wong)
View Comments (0)