Ed Sheeran's music is very popular but it doesn't seem like he has dedicated fans (like they always listen to him, watch content about him and know a lot about him). Based off of what I've seen online people don't know much about him (probably due to him being a very private person) but they know his songs and attend his concerts. He has fans just not at the level that I've seen with other pop and kpop artists.
I know that kpop is very fanbase oriented but are there any kpop artists who don't have many fans, mainly casual listeners, people just listen to their music alone?