Do you like Yungblud? Why are you asking if it's a sin to listen to him?
I did listen to a few of his songs on youtube, it's not really my style.
Most of the big pop artist/pop bands are sold out to the illuminati.
I listen to secular music and know the lyrics are many times questionable, but I like the sound, not necessarily all the messages from the lyrics.
My personal opinion is that it's best to stay away from secular music, but if your like me, and you can't stop listening, just make sure you keep praying, and seeking Jesus. We all sin and do things we are ashamed of, but keeping the faith is paramount. If you feel like your losing your religion due to music, than it's time to take a break from music.
The Bible tells about many people that have sinned, but still kept their faith in God. Peter denied Christ three times, but at the same time, there are books credited to Peter.