omg I REALLY TRIED LMK IF ITS THIS ONE
https://www.mangago.zone/read-manga/play_playlist/
here’s the summary btw Hanju is your ordinary university student… except for the fact that she’s also the up-and-coming Metube cover artist, PLII. When popular boy group member Levi takes notice of PLII and requests to collaborate, Hanju will do anything to hide her secret identity. But as the two grow closer working on a class project, Hanju’s cover begins to unravel. Will Levi discover her secret?
YESSSSSSSS OMGGG THANKYOU HAVE A NICE WEEK ┗( T﹏T )┛
i think it's a shoujo manhwa(?) all i could remember was MC has a secret account where she posts singing videos of her but you can't see her face, only her guitar. she was famous but no one knows her identity. i can also remember that there was a famous person who enrolled at her university and turns out that person idolizes her but he doesn't know that it's her who does the acoustic covers. i can remember there was a scene where MC broke the famous guy's earphones. there was also a scene that MC got a sponsorship from a famous guitar brand. i read this years ago and didn't finish it so my memories about it are a bit >< if u know it let me know!! thank you <33