Born on July 7, 2000, Kim Ha-on (김하온), better known as Haon (하온), is a South-Korean singer under Warner Music and KC. He was previously signed to H1GHR MUSIC but parted ways with the label in 2023.

Before becoming a K-POP idol, Haon was a student and an aspiring rapper who participated in reality television shows before gaining fame. He did not have a prior career outside of his pursuit of music.