Cheng Xiao (성소) Cosmic Girls (우주소녀/WJSN) Featured KOREAN COSMIC GIRLS (WJSN/우주소녀) – HAPPY HAPPY [Album] HAPPY MOMENT 2017.06.07 SeolA, Xuan Yi, Bona, EXY, Soobin, Luda, Dawon, Eunseo, Cheng Xiao, Mei Qi, Yeoreum, Dayoung,…