Watch Stranger Things Now on Netflix.

Warning: This article contains spoilers from Stranger Things Season 4, Volume 2. 

Eddie Munson has been called many names in Hawkins — not all of them kind — but to us, he’s now, and will forever be, the Master of Strings.

In the Season 4 finale of Stranger Things, Eddie (Joe Quinn) takes center stage with a guitar solo that shakes the Upside Down. Phase 3 of the gang’s plan to defeat Vecna sees Eddie and Dustin (Gaten Matarazzo) on a mission to draw out some vicious Demobats, and — luckily for us all — that includes the metalhead leader of the Hellfire Club shredding on his guitar on the roof of his trailer in the Upside Down. As he removes his pick from around his neck, Eddie dedicates the song to Chrissy (Grace Van Dien), one of Vecna’s (Jamie Campbell Bower) earliest victims, before slickly strumming the strings of his beloved B.C. Rich Warlock. (Fun fact: The guitar was originally black, but the props team gave it a red crackle finish to more closely mimic the colors of the Upside Down.)

So what song was Eddie expertly rocking as red lightning crackled the Demobat-littered sky behind him? 

The answer is Metallica’s “Master of Puppets.” Released March 3, 1986, the song boasts lyrics like “Obey your master, your life burns faster” and “Twisting your mind and smashing your dreams, blinded by me, you can’t see a thing.” Pretty fitting considering the gang have been subjected to Vecna’s string pulling and nightmarish world all season. 

What is Eddie’s band’s name?

Eddie’s band’s name is Corroded Coffin, of course. And Eddie isn’t the only one who can shred on guitar — Quinn himself actually plays off-screen as well, having been part of a band in primary school. We’re not sure he’s ever used his musical abilities to help save the world, but there’s still time! When there was downtime on the Stranger Things set, Quinn would jam with some of his co-stars. “Charlie [Heaton, who plays Jonathan Byers] is a brilliant drummer, and our friend Carlos, who lives in Atlanta, is a great friend of the cast and a great friend of mine now, [and] we did an ironic punk band rehearsal once in the height of our tedium just to have a bit of a laugh,” he previously told Tudum. “That was quite funny. I think it was called Soft Metal or something like that.”

“Master of Puppets” isn’t the first song to blow up thanks to Stranger Things Season 4. When Volume 1 debuted in May, Kate Bush’s 1985 classic “Running Up That Hill” skyrocketed to No. 1 on iTunes as well as climbing the Spotify charts, with streams increasing more than 8,700% globally during the week of Volume 1’s release (9,900% in the US alone). The ’80s jam saw a massive resurgence in popularity after Max Mayfield (Sadie Sink) made the track her personal anthem in a bid to escape Vecna’s spell.

While Eddie’s song of choice might be a heavy metal classic, the bop that would save Quinn if he was pursued by the Upside Down’s big bad is slightly more pop-centric. “‘Up & Down’ by the Vengaboys,” he joked. “It’s a silly song.” 

Reporting by Tara Bitran.