Does it matter/do you actually know them? Who's to say they aren't interesting people in their own right out of the public eye?
No, I don't know them. But I believe you can tell a lot about a person by what spills into their writing. Just read into their lyrics. They're not that interesting. Take a lyricist like John Mayer or Jesse Lacey. I take it they'd be bored after a while. It's sociology. And no, it doesn't matter, but let's argue about it!!