2AM (Korean: 투에이엠) is a South Korean boy band, that consists of Jo Kwon, Lee Chang-min, Lim Seul-ong and Jeong Jinwoon. The band was formed by JYP Entertainment through the Mnet documentary Hot Blood, which spawned the eleven-member boy band One Day; 2AM primarily perform ballad songs while their brother group 2PM performed more dance-focused music. With the addition of Changmin from Big Hit Entertainment, the group was co-managed by JYP and Big Hit from 2008 to 2014. They officially debuted on July 11, 2008,[2] on KBS' Music Bank, performing their debut single "This Song". The group also debuted in Japan with the single "Never Let You Go: Shindemo Hanasanai" in January 2012.
