A novel where MC atleast participates in an Idol contest/show (I don't know what to call them but something like Youth with You) An example would be the first arc of Forcefully Doting On You, My Artist is Reborn and The Entertainment Circle is Mine (but it's the ML in the last two, I want it to be MC) I don't know if there's a bg one where it's the Female MC that became an idol.
Surprise! The Supposed Talent Show Was Actually–?! (MC transmigrates and participates in survival show.) The Most Popular Comedian (MC is a participant in idol talent show)