Chinese concert goers might find they have less opportunities to see Western performers after Sir Elton John dedicated his Beijing stadium show to dissent artist Ai Weiwei, a persistent thorn in the side of the Chinese communist government.
Western musicians have to submit set list and song lyrics to the government, and promise not to make controversial statements, before given permission to perform in the one-party state.
After a 2008 Bjork concert in Shanghai, in which she chanted 'Tibet, Tibet', many Western acts were refused permits to play in China.