Kim Min-gee

Male celebs play make-believe as high schoolers, welcoming star transfer students every week and engaging in battles of witty humor and slapstick.

Competitors are given elaborate masks to wear in order to conceal their identity, thus removing factors such as popularity, career and age that could lead to prejudiced voting. In the first round, a pair of competitors sing the same song, while in the second and third rounds they each sing a solo song. After the First Generation, the winner of the Third Round goes on to challenge the Mask King, and is either eliminated or replaces the previous Mask King through live voting. The identities of the singers are not revealed unless they have been eliminated.

On a deserted island, flirtatious singles look for love, because only as a couple can they leave the island for a romantic date in paradise.

Divided into four teams, a star-studded cast of 12 contestants competes to be the last ones standing as they attempt to survive in the wilderness.

In this reality show, female athletes swap their sports for baseball and try to become successful players under the guidance of all-star legends.

"Single's Inferno" contestants reunite to reveal honest feelings and relationship updates — revisiting standout moments from their time on the island.