Metallica have teamed up with Stranger Things to launch a new line of Hellfire Club-themed merchandise.The metal band have been enjoying a huge resurgence of their 1986 track ‘Master Of Puppets’ of late after it soundtracked a pivotal scene in the finale of the Netflix show’s fourth season.Eddie Munson (portrayed by Joseph Quinn) plays the song on guitar in the Upside Down to distract a horde of demonic bats protecting the lair of sinister villain Vecna (Jamie Campbell Bower).Munson is the leader of the Hellfire Club, a Dungeons & Dragons group at Hawkins High that also includes Mike Wheeler (Finn Wolfhard), Dustin Henderson (Gaten Matarazzo) and Lucas Sinclair (Caleb McLaughlin).The members have their own Hellfire Club shirts, which has inspired Metallica to create their own spin on the tee.“Eddie, this one’s for you,” they wrote to announce the line. “We’re having the most metal meeting ever of The Hellfire Club so we’re scouting out ‘lost sheep’ and outsiders to join.