Born in Shanghai, G.E.M. moved to Hong Kong at the age of 4. Ever since G.E.M. was young, she had a passion for music. At the age of 5, she started writing lyrics. When she was 10, she started entering numerous amounts of singing competitions. She was awarded 5 major awards within her debutante year (2008).
G.E.M. finished level 8 piano when she was 13.
In 2006, G.E.M. participated in a competition called "Spice it Up" and got first place. Her manager, Tan Chang found her talent during the competition and signed a contract with her. She became a singer at the age of 14.