The fix doesn't involve ArtistID=13 (Weird Al). The rows with the persistent parody get all their data deleted & replaced. I had to make an artist page for myself and make song pages for all the features. A nasty workaround, but it works.
The solution, barring Wayne actually fixing the damn thing, is to have a null/neutral artist page with...basically what I have. "Song pages" that are actually features that wouldn't have an ArtistID otherwise. These pages should cover every show's features one by one - though all that's really needed for the playlist is the ArtistID. Add the SongID and it'll register as a song without an mp3...so that's to be avoided.
Also, as I mentioned elsewhere, I can't fix (most of) your guest hosted shows as I don't have your playlists. Wayne will have to sort that out. I've fixed the main shows back to 2012. As for the podcast, all of mine are fixed, but lack of info and/or a null artist page prevent the fix of the others.
Before I take any more drastic actions, I'd like to see what Wayne will do.
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Dave AuJus:
I was only able to rename the "Funky Butt"s because they only had 3 songs. I wouldn't want to fool with Weird Al because it affects so many of his songs.
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Stavro Arrgolus:
I think Dave made a null artist page for that. Can't remember the number he used...
Wayne will have to do the rest.