Red Velvet is a South Korean girl group formed by SM Entertainment, debuting in 2014 with their single "Happiness." Initially starting with four members—Wendy, Irene, Seulgi, and Joy—the group expanded in 2015 with the addition of Yeri. Known for their unique concept of exploring both "red" (bright, pop-inspired) and "velvet" (sultry, R&B-inspired) musical themes, they have gained international acclaim for their versatile music and dynamic performances. Over the years, Red Velvet has released multiple successful albums and singles, solidifying their status as one of K-pop's leading acts globally.