kbs 2TV Music Bank' rehearsal was held at the public hall of kbs New Pavilion in Yeouido, Yeongdeungpo-gu, Seoul on June 29th.
RED Velvet Irene attended the rehearsal on the day.
Jung Yu-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