Song Zuying, a famous Chinese singer, performs singing at the "Beijing Bird's Nest Summer Concert " at the National Stadium, or the "Bird's Nest", in Beijing June 30, 2009. Some famous Chinese and foreign artists inclding Spanish tenor Placido Domingo, Chinese singer Song Zuying, Chinese pianist Lang Lang and Chinese Taipei pop singer Jay Chou performed at the concert. [Jin Liangkuai/Xinhua]