Question: What artist started as a backup singer for one of the "Four Heavenly Kings" of Hong Kong?
Sentence (from "Hall of Four Heavenly Kings"): The Hall of Four Heavenly Kings or Four Heavenly Kings Hall (), referred to as Hall of Heavenly Kings, is the first important hall inside shanmen (mount gate) in Chinese Pure Land Buddhist temples and Chan Buddhist temples and is named due to the Four Heavenly Kings statues enshrined in the hall.
Relevant evidence: No