depends
first, I don't believe any of the MJ allegations, so I have no issues there.
but I do remember some singer of some metal band or something in the 90s arrested for actually fucking kids and like...buy a kid (or trying to) or something...so that's a no-go
outside of extreme cases, I can typically seperate the art from the artists.
For example, prior to my,,,uh...."conversion" away from atheism I used to get kind of annoyed at prince and some of his more religious songs...it was never a deal breaker, the songs were very good, I just didn't (and still don't, really) get onboard with some of his overt religious or social stances.
there are some great artists who produce amazing things, but in their personal lives they're deplorable, disgusting leftists...picasso is a legendary artist, but is way socialist. same with the beatles...some really great songs, but lennon was a communist. though upon typing this, I've never been a huge fan of either, so perhaps it has a subconscious or unintentional effect
IDK, I just don't really care about so much of the personal aspects of the artist in question.
it reeks of moral relativism (rules for thee, not for me), and there's nothing more intellectually dishonest or naive than moral relativism.