S.M. The Ballad f(x)(Krystal)&EXO(Chen)-좋았던 건, 아팠던 건 (When I Was... When U Were...) (Sung by f(KRYSTAL)&EXO(CHEN)(鈴聲)

Keywords:  S.M.   The   Ballad   f(x)   Krystal   &   EXO   Chen   좋았던   건   ,   아팠던   건   When   I   Was...   When   U   Were...   Sung   by   f(x)   KRYSTAL   EXO   CHEN   鈴聲   金鐘大   水晶   鄭秀晶