“I sang the first half of the verse an octave down, and then Tony came in and sang the second half for real. I like the contrast and the way it makes the song build. The way that Jeff Bowders and Craig Martini played this groove, too, is so great. It’s so easy to get excited and speed up tempos live, but they held this back and really made it big and heavy.

“It’s a shuffle. I’ve been into those lately. Actually, I’ve always liked shuffles. The heavy metal bands of my generation used to do lots of them: American Girls by Triumph, And The Bands Played On by Saxon, Children Of The Grave by Black Sabbath and, of course, all the Van Halen shuffles, like I’m the One, The Full Bug and Bottoms Up. When I listen to AC/DC playing Go Down, it makes me think, This is the best song in the world.

“Angus Young is so awesome. If I could jam with any guitar players right now, I’d pick Angus and BB King. That would be such a blast to listen to what those guys have to say on their guitars. I’d love to be a part of that conversation.”