R U Next? (알 유 넥스트?) is a 2022 South Korean girl group reality survival show created by Belift Lab. It premiered on June 30, 2023 and broadcasted every Friday at 8:50 p.m. KST on JTBC.
Lee Young-seo (이영서; born November 13, 2005) is a South Korean trainee. She is best known for being a former pre-debut member of the girl group ILLIT.