S

From Wiki.theppn

Group "S" in their Fr.In.Cl album cover

Group "S" (에스) is a project group formed by Lee Ji Hoon, Kang Ta and Shin Hye Sung, best friends famous in the K-Pop world for their close friendship. S stands for "Supreme". They debuted in 2003 with 1 album and haven't released an album since. The group was managed by Kangta's company SM Entertainment. Their most recent work was for the OST for the movie April Snow starring Bae Yong Jun and Son Ye Jin. Several years after the release of Fr.In.Cl, it is very likely that group S has disbanded.