Belle (벨) is a South Korean-American singer-songwriter under S2 Entertainment and AURA. She is the main vocalist of the girl group KISS OF LIFE.

In 2021, Belle was revealed as an artist under AURA through their website along with her social networks. She ended up not debuting as a soloist for unknown reasons.

In December 2022, she was featured in a British documentary about K-pop trainees along with Natty, Julie and two unknown trainees, who were speculated to be the members of S2 Entertainment’s upcoming new girl group, later known as KISS OF LIFE.

On May 16, 2023, she was revealed as the second member of KISS OF LIFE. They debuted on July 5th, 2023 with the mini album KISS OF LIFE.