Zo Zazz (born Cho Hong-jun in 1985) is a South Korean singer who debuted in 2025
under Brotherhood Entertainment. His debut digital single, "Don't You Know"
(모르시나요), was released on January 7, 2025, and produced by the renowned duo
Rocoberry. The song is a remake of Davichi’s 2013 track from the IRIS II OST,
showcasing Zo Zazz’s emotive vocal delivery and musical artistry.