Wong took an indefinite break from the entertainment industry ever since she married China actor Li Yapeng in 2005.
She seemed to be enjoying her role as a housewife and concentrating in bringing up her two daughters - Dou Jingtong, 12, and Li Yan, three.
Early this year, Wong took up a shampoo advertisement for 20 million yuan.
Wong, who was born in Beijing, moved to Hong Kong where she began her career as a model in 1987.
Later on, she signed with a music company and released numerous hit albums.
She has won many awards and was given the title “Best Female Singer” in Asia.
Before her break in 2005, she had recorded over 20 albums and sold a reported 9.7 million units.
She was the first Chinese singer to appear on the cover of TIME magazine.
