Secret (시크릿) is a girl group under TS Entertainment. They debuted in October 2009 in South Korea with the single I Want You Back, they rose to prominence in 2010 with the song Magic from their first mini album Secret Time (EP), which peaked at #4 on KBS Music Bank. ★ MEMBERS Jung HyoSung (전효성) ~ Leader
Jung HaNa (정하나) a.k.a Zinger (징거) ~ Rapper
Song JiEun (송지은) ~ Main vocal
Han SunHwa (한선화) ~ Maknae
Sistar (씨스타, also stylized as SI★, SiSTAR) is a four-member girl group from Seoul, South Korea, under the management of Starship Entertainment.The four members are: Bora / 윤보라, Soyou / 강지현, Hyorin / 김효정 and Dasom / 김다솜. Their group name is a combination of the words "Sister" and "Star", meaning they are meant to be sisters in the entertainment business and become big stars. SiSTAR made their first appearance through a Céci magazine photo in England shoot on March 19, 2010 for the clothing company FUBU.
4minute (Korean: 포미닛) is a girl group from Seoul, South Korea, founded by cube entertainment in 2009. The group consists of Ji Hyun (남지현), Ga Yoon (허가윤), Ji Yoon (전지윤), Hyuna (현아) and So Hyun (권소현). 4minute was announced in May 2009 along with two of the group's members Nam Jihyun and Kim Hyuna, former member of Wonder Girls. On June 11, 2009, the silhouette teaser video was released online along with their official website.