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.
SF9 (band) SF9 (Korean: 에스에프나인 ; shortened from Sensational Feeling 9) is a South Korean boy group formed by FNC Entertainment. SF9 is the company's first dance boy group to ever debut. SF9 debuted on October 5, 2016 with the release of their first single album "Feeling Sensation".