^ That is a head scratcher.
Maybe the distinction should be made between "pop" and "poppy?"
Like, Tom Waits is occasionally "jazzy" but no one's gonna confuse him with Thelonius Monk.
I just don't think Pixies and Beyonce play in the same genre, unless we pull back very far and say all music is either pop or not-pop.
God, I wish I was a few years younger so I actually gave a shit about any of this.