Cool (쿨) is a Korean ballad/pop group that first appeared in 1994. The main… Read Full Bio ↴Cool (쿨) is a Korean ballad/pop group that first appeared in 1994. The main members include Kim Sung Soo (김성수) as the male rapper of the group and known for being "goofy", Yuri (유리) as female vocalist, and Lee Jae Hoon (이재훈) as the driving force behind the group's music and lead vocalist.
Former members include Yoo Chae Young (유채영), who was the original female vocalist, but left after the first album and has since made a career in acting, and Choi Joon Myoung (최준명).

The group has produced seventeen albums (including "half" albums):

1 너이길 원했던 이유, 1994.10.01
2 The (Ku:l) : Love Is...Waiting, 1995.10.01
3 Destined For The Best, 1996.11.01
3.5 Summer story, 1997.07.01
4 애상, 1998.04.01
4.5 Misery, 1999.01.01
5 해석남녀, 2000.04.01
6 6ix, 2001.07.04
6.5 First Whisper, 2001.12.06
7 진실, 2002.07.04
7.5 Second Whisper, 2002.12.01
8 8IGHT, 2003.07.04
8.5 Third Whisper, 2003.12.18
9 Let's See What's Happening Now, 2004.07.14
10 Forever, 2005.07.15
10.5 사랑을 원해, 2008.07.25
11 쿨, 2009.07.20

In 2003, rumors began to circulate that Lee Jae Hoon and Yuri had become romantically involved and that it was creating conflicts within the group. Not long after, the group decided to disband citing internal conflicts as the primary reason.