RED Velvet (Irene Wendy Seulgi Joey Yerry) was present on the day.
Meanwhile, RED Velvet summer mini album Summer Magic will be released on various Music sites such as Melon, Genie, Naver Music, iTunes, Sporty, Apple Music and Shami Music at 6 p.m. on the 6th, and will also be released on the same day as the album.
Jung Yoo-jin
About Red Velvet
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.
 Wikipedia