Yumiko Cheng, whose real name in English is Joyce Cheng, is a Hong Kong Cantopop singer born in Shanghai and grew up in Perth, Australia, attending University of Western Australia with majors in Finance and Asian Business. Born Zheng Lie Qiong (鄭烈瓊) in China, Cheng was given the Japanese nickname "Yumiko" by her friends in secondary school. After Cheng signed on with EEG, the name was retained.
Yumiko was originally a member of the group 3T (along with Mandy and Maggie Lau), which released an EP in September 2002. Yumiko's potential was, however, soon identified by the company and in November 2002, her first solo EP Yumiko The Debut EP was released, followed by DanceDanceDance (舞舞舞) in June 2003. Her first full-length album One2Three was released in November 2003.
Apart from that, Yumiko has also taken part in various TV shows and a dozen of TV commercials as well as gracing the covers of various magazines on hundreds of occasions.
In 2004, she released her second full-length album, Perfect Date, but her number of appearances has decreased slightly due to health problems as well as strategy re-evaluation within her company. She returned precipitately in June 2005 with the song "Arabian Market" (亞拉伯市場). Her fourth full-length studio album, Passion was released in April of 2006, which sees a continuation of the Middle Eastern theme in the single "Lupine Girl" (狼女).
On 10 December 2006, while performing a stunt for TVB's annual charity show, her trousers were accidentally pulled off by Chin Kar Lok and revealed her underwear. This caused great embarrassment for Yumiko and the incident went on to dominate the Hong Kong headlines, some blaming Chin Kar Lok for doing it on purpose due to his break-up with Lee San San. Eric Tsang the MC at the time of the incident had made some crude comments such as requesting a replay of the accident in slow motion. He has since apologized due to public disapproval.
In 2007, she performed at the S.U.C.C.E.S.S. Charity Gala at Vancouver with many other artists.
On 23 June 2007, she flashed her nipples without knowing, despite the reported use of two-sided tape to affix the tube-top, during the New Talent Singing Awards Toronto Audition show at Canada's Wonderland. The material was cut from the delayed broadcast in Vancouver.
She makes an appearance in the Welcome to Beijing clip at 5.46 minutes.