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Kim Hyun Joong (Korean: 김현중; Hanja: 金賢重; Japanese: キム･ヒョンジュン)

* Birthday: June 6, 1986 (1986-06-06) 
* Position: Leader, Rap , Vocal
* Past experience: MC Show Music Core, MC SBS Inki Gayo, MC Mnet Countdown.
* Talents: Singing, Dancing, Piano, Guitar, Acting
* Notes: Kim Hyun Joong had been a host of MBC's music show Show! Music Core, debuting on November 11, 2006, joining Brian from Fly to the Sky. He then left the show in order to make the group's first debut in Japan, at the beginning of 2007. He was also part of the We Got Married cast that shows on MBC. He also got casted on the Korean version of Hana Yori Dango called Boys Over Flowers.