“I said ‘Oh my God! That’s it, that’s the hook!’ ” French remembers. “‘Why can’t we take basic structures of heavy metal songs and see if they transfer (to Christmas songs)?’ . . . And it worked. So we approached different tunes as if we had people like Judas Priest and AC/DC playing with us. How would AC/DC do Silver Bells? How would Iron Maiden do White Christmas? . . . That’s how we approached it on A Twisted Christmas because we didn’t have those other bands.