Jonathan Richman is rock's greatest case of arrested development. He started out with the immortal "Roadrunner" and "Pablo Picasso" (who was "never called an asshole"); a few years later, he was doing "I'm a Little Airplane." I'd say that lost him a lot of fans, but he was such a cult artist to begin with that I think the fans he gained offset it pretty well.
Anyway, for years he didn't like giving interviews; in one case he pretended he'd lost his voice. That didn't stop the interviewers. And that didn't stop Jonathan, either.
Just so's you get to actually hear him in action, this is his video for "I Was Dancing in the Lesbian Bar."