London, Mar.8 : China is to impose stricter rules on foreign rock and pop stars after singer Bjork caused controversy by shouting "Tibet, Tibet" at a Shanghai concert. Her cry followed a powerful performance of her song Declare Independence, reports the BBC.
Talk of Tibetan independence is considered taboo in China, which has ruled the territory since 1951.
China's culture ministry said the outburst "broke Chinese law and hurt Chinese people's feelings" and pledged to "further tighten controls".
"We will further tighten controls on foreign artists performing in China in order to prevent similar cases from happening in the future," the ministry said in a statement on its website.
"We shall never tolerate any attempt to separate Tibet from China and will no longer welcome any artists who deliberately do this."
The statement said there was "no country that admits that Tibet is an independent country".
Bjork said she "would like to put importance on that I am not a politician, I am first and last a musician and as such I feel my duty to try to express the whole range of human emotions".
A spokeswoman from the culture ministry said Bjork could be banned from performing in China if there was a repeat performance.
Human rights activists and many politicians abroad have criticised Chinese policy in Tibet. Many Tibetans feel loyal to the exiled spiritual leader, the Dalai Lama, whom China considers a separatist threat.
The song Declare Independence has previously been used by Bjork to highlight other struggles for self-rule.