[1] The group initially consisted of Lee Ji-hye, Seo Ji-young, Jang Seok-hyun, John Kim and Oh Hee-jong.
Chris was introduced as a guest member during this time.
New member Sori and Chris officially joined the group in 1999 for the second album, The S#arp+2.
Sori later left the group, and Sharp went on to release the albums, The Four Letter World Love (2000), 4ever Feel So Good (2001), Flat Album (2001), and Style (2002).
[2] The group disbanded in 2002, reportedly as a result of ongoing conflict between Ji-hye and Ji-young, including verbal and physical assault.