Johnny's with the band

Here's Johnny Depp arriving at the Late Show today. I count 3 necklaces -- only?! Or are there more hidding underneath all that other business? Must be.
Johnny's there to perform with Bill Carter and The Blame. There's supposed to be an interview too which, as he's not promoting a film (Lone Ranger's not due for a while), I'm wondering if Letterman insisted on it. No, Johnny, you can't just come here and play your guitar without a few minutes with me on the couch.
Is that what we're doing now? Music? Moving to Nashville, showing up with the band, cutting a record of pirate songs with Gore Verbinski...what? That's the rumour. And it does sound like some UK tabloid bullsh-t but, at the same time, it's not like it wouldn't be sort of consistent with Johnny Depp the last 2 years, right?