Hyein is a South Korean singer and the maknae (youngest member) of NewJeans. A former child model and child-group performer, she walked Mercedes-Benz Fashion Week in Moscow at eleven and debuted with NewJeans in July 2022 at fourteen.
In December 2022 Louis Vuitton made her its youngest-ever global house ambassador, and in 2024 she featured on IU’s track “Shh..”. She returned to ADOR in November 2025 after the group’s contract dispute was resolved in court.