Question: What is the name of this South Korean musician, singer-songwriter, record producer and actor in the rock band CNBLUE, who wrote the song You, My Star?
Sentence (from "You, My Star"): "You, My Star" (별, 그대 ; "Byeol, Geudae " ) is a song by South Korean musician Jung Yong-hwa of CNBLUE.
Relevant evidence: Yes