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In page Zhang Qiang (singer):

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In the next two-year, Zhang sold more than 20 million copies with her uncountable cover albums. Although, her popularity was widespread, she managed to be famous without the help of marketing. Her face could be seen nowhere in the media, only the covers of her albums featured photos of her, and the only information her fans could find, were nothing else than her releases. It is rumored that despite this enormous disadvantage, Zhang outsold Teresa Teng in 1986.[citation needed]