"TOgether as one! Hello, I'm Jaeyun!
Lee Jaeyun (이재윤) is a South Korean singer under WAKEONE and Stone Music Entertainment. He first appeared in the survival show "WORLD KLASS" where he qualified to debut as a member of the boy group TO1. He was not part of the original line up, but after Han Jun's disqualification, he had the next higher number of live votes.
Jaehyun debuted as the leader of TO1 on April 1, 2020 with their first mini album Reason for Being : Benevolence.