Alexaus Fong Lik-sun is a Hong Kong actor, singer and swimmer. He was nicknamed "Little Flying Fish" for his swimming achievements. Until 2021, Fong held several Hong Kong swimming records. He first represented Hong Kong at the age of 11. Fong has also represented Hong Kong at the Sydney Olympics in 2000. He holds a degree in business administration from the University of Hong Kong. Fong caught the attention of record executives with his popularity amongst teenage girls and became a singer in 2001.
He had been assigned to work with Stephy Tang of former pop-group Cookies/Mini Cookies for the past few years. They now have eight duets: 好心好報, 好好戀愛, 十・分愛, 我的最愛, 重爱, 七年, 同屋主 and 危城.
Aside from releasing albums and filming movies, Fong is also one of the hosts of TVB's hit cooking comedy show, Beautiful Cooking, along with Ronald Cheng and Edmond Leung. On 24 April 2009, Fong and Kary Ng appeared at the Melbourne Arts Center for their 2009 Melbourne show.
In 2011, Fong left his previous record company Gold Typhoon and signed to Huayi Brothers as his new record label.
In July 2016, Fong became an exhibitor with the Art of the Olympians.