JO1.

JO1 is a 11-member Japanese boy group formed by the top contestants of Produce 101 Japan managed by LAPONE ENTERTAINMENT, featuring Yonashiro Sho, Kawashiri Ren, Shiroiwa Ruki, Kono Junki, Sato Keigo, Kawanishi Takumi, Kimata Syoya, Ohira Shosei, Kinjo Sukai, and Mamehara Issei. Tsurubo Shion departed the group on December 31, 2025. On April 27, 2026, it was revealed that Ohira Shosei departed the group on May 31, 2026. Their debut took place on March 4, 2020, with their debut single,”PROTOSTAR”.