CN Blue (Korean: 씨엔블루Japanese: シーエヌブルー ), stylized as CNBLUE, are a South Korean rock band formed in Seoul in 2009. The band consists of Jung Yong Hwa (lead vocals, rhythm guitar), Lee Jong Hyun (lead guitar, vocals), Lee Jung Shin (bass guitar, vocals) and Kang Min Hyuk(drums, vocals). "CN is an abbreviation of ‘Code Name’ while BLUE is an abbreviation of the members’ individual images," said by one of the members. ‘Burning’ represents Lee Jong Hyun, ‘Lovely’ represents Kang Min Hyuk, ‘Untouchable’ represents Lee Jung Shin, and ‘Emotional’ represents Jung Yong Hwa. Debuted on 19 August 2009 in Japan with the band's first mini album, Now or Never. The group released four teasers for their 1st mini albumBluetory, starring one member per each of the videos in the sequence of Jonghyun, Minhyuk, Jungshin and lastly, Yonghwa on the 6th, 8th, 11 and 13 January 2010 respectively. On January 14, 2010 CN Blue debuted their first mini-album in Korea with the lead single "I'm a Loner" (Korean: 외톨이야).