MBLAQ (Korean: 엠블랙, Japanese: エムブラック; an acronym for Music Boys Live in Absolute Quality) is a South Korean boy band created by South Korean singer Rain under J. Tune Camp. The group consists of Seungho, G.O, and Mir, and formerly Lee Joon and Thunder. The group debuted on October 15, 2009, at Rain's Legend of Rainism concert.

On October 14, 2009, the group released their debut single album, Just BLAQ, which topped various online and offline music charts in South Korea. The group then released their first extended play album Y on May 19, 2010, and on January 10, 2011, MBLAQ released their first studio album, BLAQ Style.

On December 16, 2014, it was announced Joon and Thunder had departed from the group and they will focus on individual activities for the time being.