When did the group debut that Kang Sung-hoon is a part of?
Sechs Kies SECHSKIES (pronounced as , Korean: 젝스키스 , Japanese: ジェクスキス ) is a six-member South Korean boy band in 1997. They are the "1st-generation K-Pop idols" and were named as one of the top boy groups in the 90's. Consisting of members Eun Ji-won, Lee Jai-jin, Kim Jae-duck, Kang Sung-hoon, Ko Ji-yong and Jang Su-won, the group debuted on April 15, 1997.
SeeYa SeeYa (Hangul: 씨야) was a South Korean girl group originally made up of Kim Yeonji, Lee Bo-ram, and Nam Gyuri. When the group debuted in 2006, they were marketed as the female version of SG Wannabe. SeeYa were known for their 2007 hit song "Love's Greetings", and won Best Female Group at the Mnet Asian Music Awards that same year. In 2009 Nam Gyuri left the group to pursue a solo career, and she was replaced by new member Lee Soomi until 2010. The group continued as a duo consisting of Kim Yeonji and Lee Bo-Ram until their disbandment in 2011.