Produce_101 is a South Korean reality television show that aired from 2016 to 2019. It features trainees from various entertainment companies competing to debut in a project girl group or boy group. The show is known for its unique voting system, where viewers can vote for their favorite contestants, influencing the final lineup. The series consists of multiple seasons, including Produce_48 and Produce_X 101, each introducing new concepts and themes. The final groups formed from the show, such as I.O.I and X1, gained significant popularity and contributed to the rise of the K-pop industry.