RAINZ (Rapturously Inspiriting Boyz, 레인즈) was a South-Korean project group formed after the second season of survival show "Produce 101". They were a fan-made project group, meaning fans brought them together and pushed them towards debut, much like JBJ. They debuted October 12, 2017. Their contracts lasted one year.

The original members are Kim Seongri (C2K), Joo Wontak (2able), Lee Kiwon (2Y), Hong Eunki (GON), Byun Hyunmin (K-Tigers), Seo Sunghyuk (WH Creative). Jang Daehyeon (OUI) was added to the official lineup a few weeks before debut was announced. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.