ILLIT is a five-member South Korean girl group under Belift Lab who debuted in 2024 and quickly gained attention for bright, catchy pop releases. Not Cute Anymore leans into a more confident concept, and short excerpts began circulating in fan edits and short-form videos where the hook could be recognised instantly. The contrast between the group's earlier cute image and this bolder title helped the clip stand out, making it a popular pick for transformation, fashion and comeback-style posts across K-pop fan communities online.