for the purpose of further developing her international career. In 2004, she continued her performances for Olympic and sports related events, and inaugurated the construction start of the new Beijing National Stadium. During this time, she was also the main performer at the opening ceremony show for the Formula 1 Racetrack in Shanghai. At a show for the international unveiling of China's Olympic slogan "One World, One Dream", she performed Andrew Lloyd Webber's song Love Changes Everything. In 2006, she celebrated twenty years on stage, highlighted by the release of twenty new recordings of her 20 greatest hits. The first one, a medley that consists of parts of her five greatest hits, was launched on 8 May: the 20X20 Dance Loop. She also released worldwide on digital download distributor iTunes Music Store, and commenced an international tour for the celebration of the Chinese New Year, which included performances in Los Angeles, Vienna, Barcelona, and Roger's Center in Toronto, where she was welcomed by China's Ambassador to Canada, Lu Shumin and Consulate General of Toronto Chen Xiaoling. During this time, she also served as a judge on China's largest singing competition, The National Young Singers Grand Awards, and performed the Olympic theme song One World, One Dream at an Olympic Show at the Great Wall together with Olympic athletes. In 2007, she was appointed Ambassador for the Chinese Football Association, and her single Go, Girl Go! was appointed the official theme song of the 2007 FIFA Women's World Cup. FC Barcelona players Carles Puyol, Lionel Messi, Deco and others joined Wei in the Go, Girl Go! music video as a salute to women's football players. In 2008, she performed as part of the Fairchild Media Group, and Shanghai Media Group's Chinese New Year All Star Show 2008. The show was filmed in Vancouver, British Columbia, Canada, on 18 January 2008, and included a duet from Wei and classical-crossover soprano Giorgia Fumanti. As the year drew to a close, she collaborated with BoA, Ruth Sahanaya, Despina Vandi, Sonu, Daniela Mercury and others to remix her original hit song Dedication of Love in English. At closing ceremony of the 2008 Summer Olympics held in Beijing, Wei performed Surpass alongside Chinese singer Sun Nan. 2014-2022: I Am A Singer and The 2022 Winter Olympics In 2014, Wei competed in I Am a Singer (Chinese season 2) alongside Phil Chang, Gary Chaw,G.E.M., Han Lei and