he is an idol and secretly a villain too, he sing songs to make people like and fall in love with him and his music but it didn't worki

one day he found a shiny gem under his bed and it said, "this gem has a powerful magic that can control people's mind with your voice"

he smirks and try to use it in his next concert

you were his fan so you bought tickets and come to his concert, you didn't know he wanted to take over the whole world his voice and that he's secretly a villain