Girls Planet 999 is a South Korean reality competition show that premiered in 2021. The program features 99 contestants from South Korea, Japan, and China, who compete to form a new girl group. The show is produced by Mnet and aims to showcase diverse talents and cultures. Throughout the series, contestants participate in various challenges, including performances and evaluations, to earn votes from viewers and judges. The final lineup will consist of the top members chosen by audience votes, allowing fans to have a direct influence on the formation of the group.