They were formed through Mnets competition reality show Produce 48 and officially debuted on October 29 2018 with mini album COLORIZ.
Debut withWould You Like Yeonjungs addition and The Secret. WJSN also known as Cosmic Girls. It consists of members from South Korea and China. They were formed through Mnets competition reality show Produce 48 and officially debuted on October 29 2018 with mini album COLORIZ.