I think that where it came from and the initial birth of it - it did come out of a jam at Bruno's studio, you know? He was playing drums. And Jeff Bhasker, who co-produced the record with us, is on synths, and I was playing bass.

And then, also, when you're doing something that doesn't sound like anything else on the radio at the time, you almost need to, like, ironclad it to make sure it gets through, you know?

So when I was working with Amy Winehouse on "Back To Black," you know, she had all these beautiful songs, incredibly well-written and just her on an acoustic, nylon-string guitar. And she'd play them for me, and then I would kind of drum up my idea of what I thought - make a demo with what I thought the drums should be doing, the guitars - like, quite a crude demo.

You know, like, there's songs like "Valerie" and "Bang Bang Bang" that I was so proud of. And, you know, the level of success that they had - if they were little cult hits meant that, you know, I could sellout Webster Hall or Williamsburg Musical Hall or the El Rey theater in LA. Like, that was having made it to me. So the thought of having a number one song in my own career, like, never even registered.

I used to be a serious sneaker addict, but I've moved on a little bit from those days.

Then, you know, the other more-traditional role of the producer in, like, the kind of Quincy Jones sense is kind of part arranger. So you're coming up with, like, these - you hear these songs that are quite bare-bones, and you dream up what's the band doing? What's the rhythm section doing? What's the guitars, strings, pianos - that sort of thing. It's almost like a little toolbox.

You just pick up a little bit of whatever the ones you think are appropriate, and you try and, you know, combine them. And then you bring in other people that are great for the things that you're not so good at.