Zerobaseone or ZB1 is a South Korean boy group formed through Mnet's reality competition Boys Planet in 2023. It is managed by Wake One Entertainment. The group is composed of nine members: Kim Ji-woong, Zhang Hao, Sung Han-bin, Seok Matthew, Kim Tae-rae, Ricky, Kim Gyu-vin, Park Gun-wook and Han Yu-jin. They made their debut on July 10, 2023.