The MV of 'Happiness' দ্বারা Red Velvet (SEULGI, IRENE, WENDY and JOY) the new group from SMTOWN for the last 2 years, is now released :) Lively Urban Euro-Pop genre song 'Happiness' and its MV shows cheerful and vivid প্রতিমূর্তি of Red Velvet members.