SEOLA is a vocalist and separately credited solo singer in WJSN. After debuting with the group in February 2016, she participated in the WJSN THE BLACK unit and built a reputation for expressive pop and R&B vocals.

She released the independent solo single album INSIDE OUT on January 23, 2024. Its title track Without U is a band-pop song about regaining confidence and boundaries after a relationship. This release qualifies for SOLO independently from her WJSN group and WJSN THE BLACK unit music.

Seola’s independently released solo music is distinguished from WJSN recordings and WJSN THE BLACK releases. She has also taken part in the group’s more theatrical and dance-driven material, offering a different vocal texture in its ensemble performances.