Season 1 Mnet , 2015 Watch now Season 2 Mnet , 2015 - 2016 Season 3 Mnet , 2016 Season 4 Mnet , 2017 Season 5 Mnet , 2018 Season 6 Mnet , 2019 Season 7 Mnet , 2020 Season 8 Mnet , 2021