Kelly Yu Wenwen (Chinese: 于文文; pinyin: Yú Wénwén; born 7 November 1989) is a Chinese-Canadian singer, songwriter, actress, music producer and director. She is famous for starring in the romantic film The Ex-File 3: The Return of the Exes and for singing and composing the film song OST 'Decency' (Chinese: 体面; pinyin: Tǐmiàn).