Oh Jong-hyuk (born February 16, 1983) is a South Korean singer, actor, and
member of the iconic boy band Click-B. He debuted with Click-B in 1999 under DSP
Media, gaining fame as part of the first-generation K-pop idol scene. In 2006,
he launched a solo career under the stage name OJ, releasing the album OJ Issue,
followed by additional albums and singles that showcased his musical
versatility. Oh has also ventured into variety shows, notably appearing on Law
of the Jungle (2013–2014) and King of Mask Singer (2015), where he performed
under the alias "Lonely Man Leon." His actin...