Idk, I'm not really into pop, hip hop, etc. and I also get the feeling that they weren't as big here in the Netherlands as they were in the states. I'm also very much on the young end of the "millennial" range. I've just listened some of their stuff, and I recognise some of it vaguely. But definitely not enough not remember their name.
I'm gen z and I've never heard of him but in also not american either and I'm glad I'm not because there is something deeply wrong with america that contradicts human rights and equality