ALLDAY PROJECT MEMBER
Annie
Early life
Annie Moon, born Moon Seo-yoon, grew up inside one of South Korea’s most powerful business families. She is the granddaughter of Shinsegae chairwoman Lee Myung-hee. Her family reportedly opposed the idol plan, and her mother tied permission to Annie earning admission to a strong university. Annie got into Columbia and kept training anyway.
Career
She spent years around THEBLACKLABEL, appeared in speculation about MEOVV’s pre-debut lineup, and finally debuted with ALLDAY PROJECT in 2025. In early 2026 she paused some group schedules to complete Columbia’s spring semester, because apparently one life was not stressful enough.
Fandom file
The chaebol label follows her into every room, but money cannot rap on beat for you. Annie’s real test is whether the work becomes interesting after the headline stops being “Samsung-adjacent heiress becomes idol.”
For the full lineup, discography, reviews, and sourced tea, go to the ALLDAY PROJECT page.