Roman Tam
In 1998, Yung signed with the Hong Kong record label Fitto Entertainment (which was taken over by Emperor Entertainment Group (EEG) in 1999. In 1999 she was sent abroad for training and began to receive singing lessons from Teresa Carpio and the late Roman Tam, who she accompanied on concert tours to gain experience as a performer. By that point, she had graduated at the Hong Kong Institute of Vocational Education with a diploma in tourism.