4Minute (포미닛), Volume Up KehlBayern December 18, 2012 K Pop Music (Korean Pop), Music From Wikipedia: 4Minute (Korean: 포미닛) is a five-member South Korean girl group formed in 2009 by Cube Entertainment. The members of the group are Nam Ji-hyun (남지현), Heo Ga-yoon (허가윤), Jeon Ji-yoon (전지윤), Kim Hyun-a (김현아) and Kwon So-hyun ( 권소현). The girls released their first single on June 15, 2009 and made their first debut stage on June 18, 2009 on M.net M! Countdown. Click here to preview this song in iTunes.