It seems Bjork's decision to shout "Tibet Tibet" while playing Shanghai has frightened the life out of the Chinese government. Yes, although nobody else (bar the odd journalist and some swans) has been bothered by anything Bjork has done for decades, she's finally got a reaction.
The Chinese government are busy guys, repressing left, right and centre, but they've taken steps to ensure that nothing like that ever happens again:
During performances, entertainers who "threaten national unity", "whip up ethnic hatred", "violate religious policy or cultural norms" or "advocate obscenity or feudalism and superstition", will also be banned, the rules state.
Coldplay have announced plans to drop the song 'Let's Reorganise on Feudalist Lines' from their set, in the hope of being able to play Beijing someday.