Dancers rehearse "Swan Lake" at Singapore's Esplanade, Nov. 20, 2013. Russia's Bolshoi Ballet begins its 6-show performance of "Swan Lake" in Singapore's Esplanade on Wednesday. (Xinhua/Then Chih Wey)

A ballerina rehearses "Swan Lake" at Singapore's Esplanade, Nov. 20, 2013. Russia's Bolshoi Ballet begins its 6-show performance of "Swan Lake" in Singapore's Esplanade on Wednesday. (Xinhua/Then Chih Wey)