Stranger Things star Joseph Quinn performed Master of Puppets alongside Metallica for a backstage jam session at Lollapalooza

Fans were extremely impressed with Joseph Quinn's portrayal of Eddie Munson in the fourth season of the show.

Due to his guitar solo during Metallica's Master of Puppets in the finale episode, the actor in particular had everyone talking about it.

The actor recently joined Metallica backstage at Lollapalooza after earning accolades from them for it.

Metallica met up with the British actor, whose metalhead character Eddie Munson has sparked a significant interest for the band's 1986 classic Master of Puppets during season four of the Netflix sci-fi series, in a video that was posted by Netflix hours before the band took the stage at the music festival.

James Hetfield, the lead singer of Metallica, told Quinn in the video that he watched the series and added, "I'm a big fan of [Stranger Things]." have been since the first season.

Quinn also spoke to the band about learning the song for his performance in the show and said, "It’s all I was listening to for two years. I feel very connected to you guys."

Quinn's participation in a jam session with the band to the same song was also seen in the video.

Along with guitarist Kirk Hammett, bassist James Hetfield, and drummer Lars Ulrich, Joseph was seen performing the powerful track.

Ulrich latter also joked, playfully adding, "We’d like to make an announcement: Metallica is now a five-piece, guys."