Red Velvet – Irene & Seulgi

Red Velvet – Irene & Seulgi (Korean: 레드벨벳-아이린&슬기) is the first subunit of South Korean girl group Red Velvet, formed by SM Entertainment in 2020. It is composed of members Irene and Seulgi. The duo debuted on July 6, 2020, with the extended play Monster. Their follow-up EP Tilt came out in May 2025. source: https://en.wikipedia.org/wiki/Red_Velvet_%E2%80%93_Irene_%26_Seulgi