Wanna One - No.1, also known as No.1, is a sub-unit of South Korean boy group Wanna One. The sub-unit consists of members Jihoon, Jinyoung, and Kuanlin. The unit was created as part of the group's third extended play, 1÷x=1 (UNDIVIDED). The unit's song, 11, was produced by Dynamic Duo. Read more on Last.fm