Red Velvet 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. Sonically, the music of Red Velvet reflects their group name: their predominantly-pop "red" side experiments occasionally with electronic and funk, while their "velvet" side focuses on '90s-influenced R&B with elements of ballad and hip hop.
Red Velvet's Korean-language discography includes three studio albums, one reissue album, one compilation album, and ten extended plays-twelve of which have topped the South Korean Gaon Album Chart. Their singles "Red Flavor" and "Power Up" were number one hits on the Gaon Digital Chart, whilst "Dumb Dumb", "Russian Roulette", "Rookie", "Peek-a-Boo", "Bad Boy", "Psycho", and "Feel My Rhythm" all reached the top three. The group also ventured into the Japanese music scene with the extended plays #Cookie Jar and Sappy as well as the album Bloom.