Im Ji Myung, later legally changed to Im Joo An and known simply as Jooan, is a South Korean singer, dancer and former member of WE IN THE ZONE and TAN. He graduated from Hanlim Entertainment Arts High School and is enrolled in the Applied Music program at the Korea Institute of Arts. He made his debut in May 2019 as WE IN THE ZONE's main dancer and lead vocalist with their first single album, also titled "We In The Zone". The agency, Choon Entertainment, faced some financial issues and could not promote the group more efficiently. They quietly disbanded in January 2021 after all the members decided not to renew their contracts. Months later, he decided to try being an idol one last time and entered the singing survival show "Extreme Debut: Wild Idol", where he finished in 7th place, earning a spot in a new project group called TAN. He signed a two-and-a-half-year contract with Think Entertainment and re-debuted in March 2022 with their first mini-album "1TAN" as the main vocalist and lead dancer. However, the agency became embroiled in several controversies, and all members ended their contracts in June 2024. A few weeks later, leader Lee Chang Sun announced the group's disbandment. He enlisted for his mandatory military service on July 1, 2024, and will discharge on December 31, 2025.