In 2000, Chung was contacted by one of the model agencies she worked part-time with when she was in Hong Kong. She was offered a job opportunity by Emperor Entertainment Group (EEG), which she accepted in that year. She became a contracted artist and underwent training before making her debut. She was advised by her manager Mani Fok (霍汶希) to adopt the “Chung Yan-tung” as her stage name, after consulting fortune tellers. The name was supposed to enhance her business skills. On 18 May 2001, the management company assigned her to form a singing duo, Twins, with Charlene Choi. Chung and Choi released their first album three months later.