Annabelle Hyewon Shim, known professionally as Belle, was born on March 20 2004 in Seattle, Washington, and later relocated to the Republic of Korea. A singer and songwriter, she began appearing on television with her father, Shim Shin, during her childhood and posted early compositions on Soundcloud and Instagram at seventeen. Belle trained at SM Entertainment’s songwriting camp before contributing to tracks for Le Sserafim, Purple Kiss, and Miyeon. She debuted with the girl group Kiss of Life on July 5 2023, delivering the solo "Countdown" on the group’s self‑titled EP Kiss of Life. In 2024, she performed the original soundtrack "See the Light" for My Sweet Mobster. Belle received the Proud Korean Grand Prize for composition at the 2023 Best Brand Awards, marking a notable milestone in her rising career. The single
"RIDE (Veiled Musician X BELLE (KISS OF LIFE) with Seokchon-dong Kkijaengi)," released on December 26, 2025,
entered Melon's Top 500 Melon domestic chart at rank 416 on January 15.
