The two became super close on 'Produce 101' season 2 after being on the same team during the first evaluation. Sung Hyun Woo even went to ONO Entertainment, the same label Jang Moon Bok is in.
The two recently had a 'V Live' where they would grant fans' wishes, and one of them was for them to have a collaboration single. The label decided to grant that wish, and the single will be released in December!
Stay tuned for more on the besties' collab!