Kim Eun-Jae, also known as Ejae, is a South Korean-American songwriter and producer, best known for her role as the singing voice of Rumi in Kpop Demon Hunters.
Originally a K-pop trainee for SM Entertainment, she became a songwriter and producer after failing to be selected for a debut. She has since worked on numerous K-pop songs for groups such as Twice, Red Velvet, Aespa, and Nmixx.
Following her success with KPop Demon Hunters, she began a solo music career, releasing her debut single in October of 2025.
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