A member of Sechs Kies Kang Sung Hoon is well known for his beautiful singing voice since he was the lead vocalist of Sechs Kies, often cited to having the best singing voice like Kangta's voice. Kang released 4 albums including Bee Sang, 2001, Vol. 2, 2002, Hoony, 2003, Everlasting, 2004. He is currently working for NH Media Entertainment.
Kang Sung Hoon was born on February 22, 1980 in South Korea. He participated in Sechs Kies in 2006 and turned into working under Laful Entertainment after Sechs Kies’ disbandment.
Kang Sung Hoon has never married.