Share Read on Mobile Enter Reading Mode MAMAMOO's Moon Byul x Red Velvet's Seulgi want to be 'Selfish' in cute MV teaser! Posted on 2018-08-26 07:00:29 by desire MAMAMOO'sMoon ByulxRed Velvet'sSeulgimake such a cute pair in their new "Selfish" MV teaser! Comment