The group is composed of AOA members: Hyejeong, Chanmi, and, Yuna.

[2] In early February of the same year, the label began providing teasers of the members on their upcoming debut.

[8] In late 2019, the group performed the single on the TV show Queendom.

[9][10] On January 1, 2021, FNC Entertainment announced that Yuna's contract had expired.

[citation needed] On May 22, 2024, Dohwa announced through her personal social media that she had left FNC Entertainment following the expiration of her contract.