CNBLUE is a South Korean pop rock band formed in Seoul. The lineup originally consisted of Jung Yong-hwa (leader, guitar, main vocals, rap), Lee Jong-hyun (guitar, vocals), Kang Min-hyuk (drums), and Kwon Kwang-jin (bass), and they released their debut Japanese mini-album Now or Never in 2009. Kwon Kwang-jin left the band shortly after and was replaced by Lee Jung-shin (bass, rap).