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Choi Eun Jun (Eun Jun Choi)
Also known as: Choi Eun Joon, Choi Eunjoon, Choi Eunjun, Choe Eun Jun, Choe Eunjun
Date of birth: 6 August 1999 (27 years old)
Country: South Korean
Choi Eun Jun, known simply as Eun Jun, is a South Korean singer, dancer, former member of SPECTRUM (스펙트럼) and current member of AIMERS (에이머스). He graduated from the Chungbuk National University College of Education Affiliated High School and later obtained a bachelor's degree in K-Pop from Dong-Ah Institute of Media and Arts.
He made his debut in May 2018 as SPECTRUM's sub-vocalist and maknae with their first EP, "Be Born". The group was managed by Wynn Entertainment (WYNN 엔터테인먼트).
However, shortly after their debut, member Kim Dong Yoon passed away, which generated instability inside the group. Later, the lack of activities due to the COVID-19 pandemic ended with their disbandment in 2020.
He moved to Hyper Rhythm (하이퍼리듬) and re-debuted in November 2022 as AIMERS's main vocalist with the album “Stage 0: Betting Starts“.
He enlisted as an active-duty soldier in the army on February 23, 2026.
