Fallon explained the "Painkillers" title to HMV.com
: "That came from what I think music is, it's a companion piece to your life," he said. "When people are depressed or in trouble they listen to music to feel better. To me that summed it up, it was why I got into music, it was a comforting thing, like a painkillers. Plus I wanted a one-word title that symbolizes everything and it just popped into my head one day."