At this point, Sam and Dean Winchester know what they enjoy and what they don’t. For example, they’re not big fans of Leviathans, but they do enjoy flannel. They hate Lucifer, but they love their 1967 Impala. They could do without shapeshifters — and most monsters — but they could never do without some good rock ‘n’ roll. In fact, for as much as they’re on the road, music is a huge part of both of their lives, not to mention the life of the show. (“Carry On My Wayward Son,” anyone?)

So it’s no surprise that the Supernatural writers have been trying to work rock ‘n’ roll into the show for awhile now. And in season 12, they might’ve found a way to do just that. “[It] seems like such a natural thing to do an episode based around rock ‘n’ roll,” showrunner Andrew Dabb tells EW. “That is the tenor of the show. It’s something we’ve played with off and on, but it’s something that always felt a little bit bigger than one episode because it is such a big part of our show.”

And when they decided to cast rock star Rick Springfield to play Lucifer in season 12, Dabb and his team realized they finally had their opportunity. “When we made the decision to have Lucifer inhabit a rock star and live in that world for a number of episodes, that felt really fun and like a natural evolution for the show, something where we can have fun with the Spinal Tap of it all, the sleazy behind-the-scenes music business of it all,” Dabb says. “That was in the ether, and then it crystallized this season.”