As the youngest member of Apink, Oh Ha-young — known professionally as Hayoung — has spent more than a decade as a core presence in one of K-pop's most enduring girl groups, contributing as a sub-vocalist and rapper across the group's long run under IST Entertainment.
Debut and role within Apink
Apink debuted in 2011, and Hayoung joined as the group's maknae, a position that carried particular visibility given the act's sustained commercial longevity. Within the group's vocal architecture she functions as a sub-vocalist and rapper, rounding out an ensemble that has remained active well past the point where most contemporaries disbanded. By the time Apink marked its 14th debut anniversary in 2025, Hayoung was one of the members reflecting publicly on the arc of that career — including the strict weight management regimens that defined the group's early years, which she and fellow member Park Chorong discussed openly on Super Junior members Donghae and Eunhyuk's YouTube channel.
Beyond the group
Hayoung's work has extended into acting and modeling alongside her commitments to Apink, and she is also credited as a composer, a range of activity that places her among the more multi-disciplinary members of the group. In 2026, she moved into fashion design in a more formal capacity, partnering with the brand MYSHELL on a collaboration bag she personally developed. Drawing on her own outdoor activity experiences, she took an active role in the product's design direction, aiming to balance functionality with considered aesthetics — a project that reflected an interest in creative work outside the immediate frame of music and performance.
