R.ef

R.ef was a South Korean K-pop, Eurodance idol trio turned duet that gained popularity in the 1990s. They debuted in 1995 and consisted of members Lee Sung-wook, Park Chul-woo and Sung Dae-hyun. They disbanded after their last official concert together in October 1998. They reunited six years later releasing one single as a trio and released two more singles in 2012 and 2013 as Lee Sung-wook and Sung Dae-hyun down to being a duet. In 2015, they attempted to release their 4th album which would have been the latest album R.ef had in over 17 years. However, the album was shelved. In 1995 and 1996, they won both the Golden Disc Awards and Seoul Music Awards.