Joyce Cheng Yan-yee (born 30 May 1987) is a Hong Kong Canadian singer, writer and actress based in Hong Kong. She is the daughter of late Hong Kong comedian Lydia Shum and singer/actor Adam Cheng.
Cheng is the daughter of Hong Kong actor/singer Adam Cheng Siu-chow and comedian Lydia Sum Tin-ha. She has family roots in Taishan (Guangdong) and Shanghai. She is also the god-daughter of Alan Tang. During most of her childhood, she gained media exposure due to her mother. Cheng showed an interest in show business. At 13, she performed a version of Britney Spears' Oops!... I Did It Again, in a Hong Kong charity television program.
Cheng spent much of her childhood in Vancouver, British Columbia, where she attended Crofton House School. She dropped out of Queen's University in Kingston, Ontario, Canada, to spend time in Hong Kong while her mother, Shum, was diagnosed with cancer. Later, Cheng remained in Hong Kong to pursue a music and acting career in Asia.