aespa

Yoo Ji-min was scouted by SM Entertainment and became a trainee in her late teens, a relatively short training period for SM. She debuted as aespa's main dancer and de facto leader in 2020. Her precise, forceful movement style and striking visual presence made her the group's early breakout — she became an ambassador for Givenchy and is widely ranked as one of fourth-generation K-pop's most technically accomplished dancers.

Uchinaga Aeri was raised in Tokyo and grew up trilingual in Japanese, Korean, and English — a combination that gave her a cross-cultural fluency unusual even by international K-pop standards. She joined SM through a Global Audition and debuted as aespa's main rapper in 2020. Her dry wit and self-aware humour contrast with the group's high-concept art direction and have earned her a devoted separate fanbase.

Kim Min-jung trained at SM Entertainment for several years before debuting as aespa's lead vocalist in 2020. Her voice is aespa's sonic anchor — a powerful, crystalline instrument capable of driving the group's biggest stadium moments. She is considered one of the strongest live vocalists in the fourth generation of K-pop, a distinction that became more visible as aespa moved into arena-scale touring.

Ning Yi-Zhuo relocated from Harbin, China to Seoul as a teenager to train at SM Entertainment. When aespa debuted in 2020, she was 18 — making her debut the youngest of her generation of SM artists at the time. Her voice is the widest in aespa's range, capable of both delicate, floating high notes and rich lower harmonies that give the group's sound its depth. She has become a cultural bridge figure connecting aespa's work with mainland Chinese audiences.