Then auto-tuned, sample-ridden, garbage "music" should follow the same rules. The "artist" that "made" those songs shouldn't have any rights to the material as they didn't make anything. They had a computer rework their voice, who's words are often someone else's, with music that was also made by someone else.
Someone made the reference images generative AI used to make the end result image just like someone made the music that Lil' NoTalent69420 ~~copied~~ used for their song. Lil' NoTalent69420 manipulated it as much or even less than the individuals making AI art. It's pretty frustrating.