Kim Si-A (김시아) monoymously known ROSESIA is an independent South Korean singer, and, songwriter. She made her singing debut with the single-album, 행복? (HAPPINESS?), on October 7th, 2020.

ROSESIA takes her free time to do covers on her YouTube channel, and also owns a second Instagram account, where she posts about her drawings. Surprisingly, she was the one who drew the cover for her digital single, “Rather.” She also has done tons of collaborations with small artists in the industry, as well.

A month after her debut, she released her first full-album, Loneliness. Which was then followed by March 2021’s Grace.

Few months later, she started 2022 off with another single-album titled, 속마음 (heart). She later then released multiple singles throughout the rest of the year.