Cool, a South Korean co-ed group, debuted in 1994 with their first album The Reason I Wanted You (너이길 원했던 이유). The original lineup consisted of Kim Sung-soo, Lee Jae-hoon, Yoo Chae-young, and Choi Jun-myung. Following the departure of Yoo Chae-young and Choi Jun-myeong after the first album, Yuri joined the group, and they continued as a trio with Kim Sung-soo and Lee Jae-hoon. Cool's music, characterised by simple melodies and easy-to-sing lyrics, gained widespread popularity in South Korea. Their songs frequently topped Korean karaoke charts and were known for their dance and ballad styles. Cool released numerous albums throughout the 1990s and early 2000s, including The [Ku:l]: Love Is...Waiting (1995), Destined For the Best (1996), and Summer Story (1997). In 2002, they received the Golden Disk Award for their seventh album, which was the year's best-selling album. Despite announcing their disbandment in August 2005, Cool reunited in July 2008 with the release of Cool Returns and continued to release albums such as Cool 11 in the summer of 2009. In 2014, they celebrated their 20th anniversary with the release of "Goodbye" and embarked on tours and broadcasting activities before disbanding.
