Actress Yang Zhuqing (who plays Rosie, R) sings with actor Jia Qiu (who plays Bill) on the stage of "Mamma Mia" during an enchore session in Beijing on August 14, 2011. The Chinese version of the classical broadway play "Mamma Mia" premiered on Aug 12 and has attracted many theater-goers in Beijing. 22 hit tunes of ABBA were sung to tell the ups and downs of life in the play. [Photo/Xinhua]