Joseph Quinn’s Eddie Munson has become a fan favourite after ‘Stranger Things’ Season 4 and the writers paid tribute by posting a video where the actor rehearses Metallica’s ‘Master of Puppets’, which is eventually played in the epic finale in what Munson labels the “most metal ever” concert

In the episode, Munson gets atop his trailer in the Upside Down and makes good use of his BC Rich guitar to draw the bats from Vecna’s lair, leaving the monster unguarded and allowing Robin, Steve, and Nancy to launch their attack. 

However, Quinn didn’t do all the work while belting out the heavy metal classic with Metallica bassist Robert Trujillo’s son Tye Trujillo helping with the solo. 

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The song is one of many that ‘Stranger Things’ has catapulted to newfound popularity, the other being Kate Bush’s ‘Running Up the Hill’. Metallica has tapped into the craze over their 1986 track, releasing a clip of them playing the song alongside Quinn’s Munson in the Netflix show. In their performances, Trujillo can be seen wearing a Hellfire Club tee, in a nod to Munson’s Dungeons and Dragons group

The Duffer brothers planned out the character’s involvement in Hellfire Club to explore the paranoia that gripped the US in the 1980s about the game being a gateway to satanism. 

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“We felt like because D&D was such a core part of our show and we’re set in the 80s that it was something that we needed to explore”, Matt Duffer said to Deadline. 

He also said, “We wanted to explore the idea of “satanic panic” because we have our kids playing Dungeons & Dragons. It was just this fascinating period that seems ridiculous now looking back, but it was very serious at the time. It was like major media. We have Eddie reading Newsweek and we’re demonizing this game and people believe that it was a really bad influence on kids. Bad to the point of causing them to commit murder and all these other heinous acts.”