Red Velvet (group) - Wikipedia

Red Velvet (Korean: 레드벨벳; RR: Redeubelbet) is a South Korean girl group formed and managed by SM Entertainment.They originally debuted on August 1, 2014, with the single "Happiness" with the four-member line-up of Irene, Seulgi, Wendy, and Joy.A fifth member, Yeri, joined in March 2015, following the release of their first extended play, the chart-topping Ice Cream Cake.