Yoo Gun-Hyung wis introducit tae the warld o K-pop in 1996 as ane-hauf (alang wi Suh Jung-Hwan) o the Korean hip hop duo Untitle.[1] Yoo an Suh war baith still in heich schuil, an gained pairticular notoriety in the Korean muisic industrie acause thay wur awready writin thair awn sangs.[2] Thair seicont album, entitled The Blue Color wis released in 1997.[3] Untitle disbandit in 1999.[3]
Yoo's collaboration wi PSY goes back at least tae 2006, wi Yoo writin muisic an PSY writin leerics for sangs on the 2006 album PSY – We Are The One.[4]
It haes been reportit that Yoo an umwhile Untitle co-memmer Suh hae been wirkin wi Jang Woo Hyuk (umwhile o H.O.T.) on a solo project.[8]
"Gangnam Style", the lead single o PSY 6 (Six Rules), Part 1, which Yoo co-wrote wi PSY, wis released on 15 Julie 2012, an the video wis uploadit tae YouTube the same day.[9] Athin weeks, the video haed made it tae #3 on YouTube's muisic video leet.[9] Then in August, the video went viral ootside o the Korean-speakin warld, an bi September haed acome the maist "likit" video in the history o YouTube.[10]
↑miketastic, "Way Back Wednesday: Spring Fling", www.allkpop, March 21, 2012. Note that although English-language sources sometimes mistakenly call the group "Untitled", the group's music videos (i.e. this one) feature the spelling "Untitle" and that is the spelling used by major English-language sources on South Korean popular culture, including soompi.com and allkpop.com.