Global fashion brand GU pop-up event opening photo event was held on August 23 at GU pop-up store in Seogyo-dong, Mapo-gu, Seoul.
RED Velvet Joy was present on the day.
Jang Kyung Ho
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