According to insiders, rapper Cheetah, Kahi, SG Wannabe's Lee Suk Hoon, and dancer Kwon Jae Seung�are the 4 trainers of the competition�program. Cheetah will overlook rappers, Lee Suk Hoon will take charge of vocals, and Kahi along with Kwon Jae Seung will advise on dancing.

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Cheetah and Kahi have also appeared the first season of 'Produce 101'. It's reported that many male rappers were in consideration for the trainer position but Cheetah was ultimately chosen to appear on the show again.

Meanwhile, 'Produce 101' season 2 with main MC BoA has started filming on February 26.�