"He comes in the studio," begins Breuer, "Dude, let me tell you something. Why this guy is a real�probably the only rock star that does this. He comes in there and goes, 'Ah, I'm ready to go.' And we go, 'Well, we're ready for you whenever you're ready. We've got this studio.' So he goes, 'F***! I ain't going in there. I wanna do it right here in the f***ing board room. That's where I record. And I don't want no headphones; that's f***ing cheatin'. I wanna stand here with a mic like I'm on stage.'

"And he recorded in the board room with no headphones - just standing there. I mean, he was sweatin', he was so into it." Known for his bang-on imitations of metal legends, Breuer described his efforts to work with producer and current Volbeat guitarist Rob Caggiano to set the song up for his AC/DC hero.

"Before he came in, I laid the vocals down to kind of give him an idea to sing along to it," explains the comedian. "That's what the producer does for me. I don't know my voice. I can imitate people. I can do Ozzy or I can do James Hetfield, or whoever, but I don't know what my real voice sounds like. So I didn't know what I was gonna sound like.

"So what the producer would do is, like, 'Breuer, you need to hit this note�' So he would go in and go, 'Sing it it the way�' and then I'd listen and copy. So that's what we did for Brian.