Invincible Youth 2009 - 2010

Invincible Youth (Hangul: 청춘불패; hanja: 靑春不敗; RR: Cheong-chun-bul-pae) is a South Korean variety show which aired its first season on KBS2 from October 23, 2009 to December 24, 2010. Season 1 featured seven girls (collectively known as G7) from K-pop idol groups wherein they experience how it is to live and survive in the Korean rural outdoors. It started its second season on November 12, 2011 featuring eight girls.

Kpop group After School

After School (Hangul: 애프터스쿨, Japanese: アフタースクール, often stylized as AFTERSCHOOL, abbreviated as A.S.) is a South Korean girl group formed by Pledis Entertainment in 2009,^[1] with an admissions and graduation concept.^[2] The band consists of eight members: Jungah, Jooyeon, Uee, Raina,Nana, Lizzy, E-Young and Kaeun. Graduate member Soyoung graduated from the group in fall 2009, Bekah officially graduated from the group in July 2011, and Kahi graduated in September 2012.<sup>[3][4]

http://en.wikipedia.org/wiki/After_School_(band)</sup>