I look for that stimulation constantly. I'm looking for inspiration and stimulation. Not bored with what we've done.

When I discovered blues - I was 12-years-old - I didn't discover it in America where it was from; I discovered it from Fleetwood Mac - the original Peter Green Fleetwood Mac, Saveloy Brown - like British blues interpretations of it,' which then, when I started the liner notes and seeing all these names, I was like, 'Who's Willie Dixon?' Then I go to the record store and ask the guy there and he goes, 'Oh, you don't know anything.' And so, to me, that's the root of most of it anyway.

I get bored quickly. I kind of take my hat off to bands who have been around for a long time and still do the same thing, because it's hard to keep a band together for decades. But I couldn't do that. I couldn't play the same songs night after night or just trade on my past glories, because it wouldn't interest me as a person.

Pop music was supposed to be a flash in the pan, but here we are 50 years later and it means something to us, and it always will do. It's incredibly important.

Our campaigns have always been based on what we consider music icons that transcend generations and they're not of the moment - they continue to evolve.

There are so many artists who get to my age that get comfortable and just stick in a groove, and I really don't want to do that.

It is nice to make a record and people like it, and it's encouraging.