AEEO (아에오) is a South Korean singer-songwriter under JACSO Entertainment. He is a former member of the pre-debut group MBK BOYS.
He made his solo debut on July 4, 2025 with his first single album called "별".
As a producer, he goes by the stage name BILLENNIUMBABY and is a member of the producing team CIELOGROOVE.
He is also a former contestant of Under Nineteen and Wild Idol.
Career[]
2018: Under Nineteen[]
In 2018, he participated in MBC’s survival show Under Nineteen, representing MBK Entertainment. He was a part of the vocal team. He was eliminated at episode 12 ranking 15th in the vocal team and 37th overall.
2019-2020: MBK BOYS[]
On May 10, 2019 Lee Jae Eok was introduced as a member of MBK's pre-debut boy group MBK BOYS.[1]
On January 8, 2020, it was announced that the official Twitter Account MBK BOYS was changed with POCKETDOLZ that would include in the line-up Lee Han Gyul and Nam Do Hyun, explaining the official disbandment of MBK BOYS.[2]
2020: New agency[]
On December, 24, 2020, he was revealed as new trainee under One Cool Jacso Entertainment.[3]
2021: Wild Idol[]
On August 12, 2021, he was introduced as the 30th contestant of the survival show Wild Idol.[4] Unfortunately, he was eliminated in the final episode thus making him unable to become a member of TAN.
Discography[]
Single albums[]
- "별" (2025)
Filmography[]
Reality shows[]
- Under Nineteen (MBC, 2018) — contestant
- Wild Idol (MBC, 2021) — contestant (#30)
.png "MBK BOYS Lee Jae Eok profile photo (1).png (2.05 MB)")
.png "MBK BOYS Lee Jae Eok profile photo (2).png (2.34 MB)")