Brandon Flowers spies on people's conversations for inspiration.

The Killers singer admits to being nosy and listening in to other people's conversations in order to get material for his songs, and is always being told off by his wife for doing so.

"I try to look around. I'm an eavesdropper. I've always been that way. My wife gets mad at me when she sees me do it. I love to listen and to watch other people," he said.

From his observations, Brandon who says he's spent longer writing the lyrics for new album Battle Born than on anything else in his career - warns people not to forget where they come from and urges them to get back to nature.

"I would say this is one observation of my generation right now: we don't seem to have it together as much as a lot of other generations. Like technology, it's amazing, but we don't wanna forget where we're from. You do forget. In the past few years I started going on hikes and going camping a bit more. You feel different. It feels familiar. Familiar to our soul I think. Whenever we were on tour, I got into the habit, on days off, of catching the bus up into the nearest national park and just walking around. It connects you with something," he told NME.