eaJ is a Korean-American singer. He has released three extended plays: Medicated Insomnia, smiling in insomnia, and when the rain stopped following me. eaJ has collaborated with Safari Riot and VALORANT Music on the song Visions, with Jentry Chau vs the Underworld on the song See, and has also released the popular song when the rain stops. He was the former vocalist and lead guitarist of the South Korean pop-rock band Day6. eaJ was one of the final six contestants in the first season of the singing competition television series K-pop Star.