A lot of popular music is made by producers and this has been true for a long time. There are drum machines, pitch correction, session musicians and music is stitched together with effects and loops and this has been true since disco and before. Additionally, corporations took over the radio programming in the 70s and dictated what music people would listen to and what wouldn’t be heard.
In my mind, popular music is already artificial which is why I rarely listen to any of it and haven’t since the mid-1970s. I mainly listen to independent musicians who write and play their own stuff which covers many genres. So AI is just another brick in the wall to bring back an old quote.