Responses
Idk if it’s this one but it has the same premise
https://www.mangago.zone/read-manga/love_in_the_underworld/
OMG, that was the one thank you so much!!!!! Of course it never got finished :(. lol
It was a boys love manhwa and it was about music students in college? And one of them had an ex boyfriend that stole his song and became a famous singer. And I think he came by to the school for some sort of recital or concert?