Tags: 2AM, Big Hit Entertainment, Changmin, Jinwoon, Jo Kwon, Music Video, MV, Nocturne, Regret, Seulong
Tags: 2AM, Changmin, iBig Hit, Jinwoon, Jo Kwon, Music Video, MV, Nocturne, Regret, Seulong, You're Going to Regret it
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