Bassist Brad Waist told Artist Direct
how the song came together. "It's one of the first songs we wrote with Matt," he explained. "He actually had an idea. He had a chorus line. I think he had 'Painkiller' and part of the riff. We said, 'Oh, that's wicked! We can work with that.'"
"'Painkiller' is one of those songs that clicked right away," Waist added. "We were like, 'This is fantastic. Let's keep going.' We kept writing from there, and it's been great."