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).[1] 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.

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