Grace Quek, known professionally as Annabel Chong, is a Singaporean former pornographic film actress who became famous after starring in an adult film that was promoted as the World's Biggest Gang Bang. The film was commercially successful and started a trend of "record-breaking" gang bang pornography. Four years later, Quek was the subject of the documentary Sex: The Annabel Chong Story, in which she was interviewed about her pornography career. She retired from the adult industry completely in 2003 to work in software engineering.