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In Asian and specifically Chinese culture, a sisheng, or sisheng fan, is an obsessive fan who stalks, or engages in other behaviour constituting an invasion of the privacy of a Chinese idol or other public figure. Sisheng fans are described as often being female, aged 17 to 22, and driven to commit what in some cases may amount to borderline criminal acts in order to gain attention from celebrities. Examples of such acts include seeking out celebrities at their dorms or homes, stealing their personal belongings or information, harassing family members, and sending idols inappropriate gifts such as lingerie. Although the term sisheng was coined much later, the obsessive, disruptive fan behavior it designates emerged with the rise of C-pop idol groups and "fandoms." And with the rapid development of the Chinese popular culture industry, and the spread of the "Chinese wave" internationally in the 2000s and in recent years, extreme and disruptive fan behavior towards Chinese idols and celebrities has also been seen abroad.
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