Cedain Zhoema, Chinese famous singer of Tibetan ethnic group, sings at the opening ceremony of the Tibet Week in World Expo Park in Shanghai, east China, Sept. 1, 2010. More than 400 performers from southwest China's Tibet Autonomous Region will take part in various activities during the Tibet Week at the World Expo in Shanghai from Sept. 1 to 5. [Xinhua]

Singers perform at the opening ceremony of the Tibet Week in World Expo Park in Shanghai, east China, Sept. 1, 2010. More than 400 performers from southwest China's Tibet Autonomous Region will take part in various activities during the Tibet Week at the World Expo in Shanghai from Sept. 1 to 5. [Xinhua]