'WhiteUsedSocks' [Youth of Ivory]   [credit] 1.Ivory Sung by Whiteusedsocks Composer : 정재헌 / Lyrics : 정재헌 Arranger : Whiteusedsocks Vocal : 정재헌 / Guitar : 정재헌,황교승 Bass : 김효주 / Drum : 박세진 Recording Engineer : 박세진 Mixing Engineer : EARLY MOON Mastering Engineer : Choi Hyo Young @SUONO Mastering   2.O(demo) Sung by Whiteusedsocks Composer : 정재헌 / Lyrics : 정재헌 Arranger : Whiteusedsocks Vocal : 정재헌 / Guitar : 정재헌 Piano : 박세진 Mixing Engineer : 박세진 Mastering Engineer : EARLY MOON