Desc: Abba: Directed by Jung-Liang Hung. With Yi-Feng Hung, Chris Hung, Yao Hung, Jung-Liang Hung. Abba (2011) is a new style musical documentary, and the biography of the King of Taiwanese songs - Yi-Feng Hung. The story began in 2010, the promised concert between the three sons of Hung for their father. In search of their father, the three brothers found the missing puzzles of their life, and gradually pieced together the life of the legendary music master, their beloved father.