She is a former member of the South Korean girl group AOA and she has starred in television dramas Orange Marmalade (2015), My Country: The New Age (2019), Awaken (2020–2021), and film Memoir of a Murderer (2017).

[6] In 2010, Seolhyun won the 8th Smart Model Contest (스마트 모델 선발 대회), a competition in which ordinary students wear uniforms.

[9] Soon afterwards, she made her acting debut in the television drama Seoyoung, My Daughter, playing the role of Lee Jung-shin's girlfriend.

[11] Seolhyun first attracted attention with her appearance on the KBS variety show, Brave Family (2015), where she charmed viewers with boyish and unaffected demeanor.

[12][13] Later that year, she gained fame through a commercial for SK Telecom which led to increased advertising offers for the star.

[citation needed] At the end of 2021, Seolhyun hosted the KBS Song Festival along with Cha Eun-woo and Rowoon.

[35] In February 2018, Kim and CNBLUE's Lee Jung-shin traveled to Kalaw, Myanmar to volunteer at the 4th LOVE FNC school for underprivileged children.