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?

Related documents: [0]  [DOC] "You, My Star" (별, 그대 ; "Byeol, Geudae " ) is a song by South Korean musician Jung Yong-hwa of CNBLUE. Written in dedication to his fans, the song was released in December 23, 2013, under FNC Entertainment. Two days prior, Jung performed the song on the year-end music program "SBS Gayo Daejeon". "You, My Star" debuted and peaked at number 22 no South Korea's national Gaon Digital Chart; all proceeds went to the label's charity Love FNC. [END] 
[1]  [DOC] Jung Yong-hwa (; ] ; born June 22, 1989) is a South Korean musician, singer-songwriter, record producer and actor. He is the leader, lead vocalist and rhythm guitarist of the rock band CNBLUE. Jung made his television debut in "You're Beautiful" (2009), and has since starred in television dramas "Heartstrings" (2011), "Marry Him If You Dare" (2013) and "The Three Musketeers" (2014). In 2015, Jung made his solo debut with the album "One Fine Day". [END]  
Answer: Jung Yong-hwa
Jung Yong-hwa