Joey - Yerry - Irene, 'heartbeat'

The group Red Velvet attended the '2021 KBS KPop Festival' red carpet event held privately at KBS in Yeouido-dong, Yeongdeungpo-gu, Seoul on the afternoon of the 17th.

About Irene

Bae Joo-hyun, known professionally as Irene, is a South Korean singer, rapper, and actress. She is the leader of the South Korean girl group Red Velvet and a member of its sub-unit Red Velvet - Irene & Seulgi.  Wikipedia