Dancers perform in the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, May 3, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, May 3, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

A dancer performs in the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, May 3, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, May 3, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the rehearsal of the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, April 27, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)

Dancers perform in the musical Hundred-bird Dress in Nanning, capital of South China's Guangxi Zhuang Autonomous Region, May 3, 2013. The musical tells a legend of the Zhuang ethnic group about a young hero's sacrifice in protecting the homeland against an evil polluting power. (Xinhua/Liu Jun)