Kim Min-jun (; born January 15, 1988), better known by his stage name Jun. K, is a South Korean rapper, singer, songwriter, record producer, dancer and actor. He is the main vocalist of 2PM. Formerly known as Kim Jun-su (Hangul : 김준수), he revealed on October 17, 2012, that due to family reasons he would be changing his name to Min-jun, though his stage name would remain the same. Jun. K is the writer and the composer of 2PM's title songs, "Go Crazy","My House" and "With Me Again".He also wrote and composed many b-side tracks for 2PM. Aside from his group activities, Jun. K has released 3 digital singles, 2 extended plays in South Korea and 1 digital single, 4 extended plays in Japan, his first three Japanese albums which peaked at number two on the Oricon Weekly Albums Chart. His second Japanese album Love Letter ranked number one on both Billboard Japan "Top" and "Hot" album sales charts. His first Korean album, Mr. NO♡, debuted at number nine on Billboard World Albums chart. His third Japanese album "No Shadow" ranked number two on Billboard Japan "Top" and "Hot" album sales charts. His fourth Japanese album No Time ranked number three on the Oricon daily sales chart. Early life Kim Minjun was born in Daegu, South Korea and attended Dong-ah Institute of Media and Arts. Prior to singing, he had entered and won various poem and songwriting contests. He attended Kyunghee University's Media Information Graduate School for his master's degree. He originally auditioned for YG Entertainment, where he befriended G-Dragon and Taeyang of Big Bang. He was accepted into both YG Entertainment and JYP Entertainment, and ended up signing with the latter. He remains close friends with both members of BigBang. Career 2008–2010: Debut with 2 pm and solo activities Jun. K was chosen as main vocalist of 2PM. The group official debuted on September 4, 2008. During a 2 pm fanmeeting in 2009, he performed his composition "Hot" for the first time for his solo. "Hot" was later recorded by all six members and included on their second studio album Hands Up (2011). In 2010, he collaborated with composer Jung Woo on the track "Tok Tok Tok" released in August, provided guest vocals for then-labelmate San E's song "B.U.B.U." (an acronym for "Break Up Back Up"), released in September as part of his first extended play, and teamed up