Killswitch Engage is a known band among wrestling fans, having provided "This Fire Burns" for CM Punk as well as various indy themes. Roderick Strong used their song "The End of Heartache" for a while on the indies, and apparently they almost contributed his NXT theme as well, according to his interview on the Meep Meep podcast.

"It wasn't (a coincidence his theme sounds like Killswitch). It's crazy, you want something done and it's never as good as the people who can do it. We almost had a little bit of a thing and it would have been awesome. I had it worked out where they were going to -- they had an album getting ready to come out and they were going to be able to promote it with NXT. Basically cover what (NXT) had done for me, but improve it, which is what I wanted. There is a certain sound that Killswitch has and you can tell if it's them or not. It made me so sad that it fell apart, but it was what it was. They were going to put lyrics to it and make it an actual song."