Actor Joseph Quinn admitted he spent 2 years trying to perfect his guitar performance of Metallica's "Master of Puppets" for the climatic scene in the finale of Netflix's 'Stranger Things'. I bet he appreciated every moment he spent practicing when he was standing in front of Metallica playing it! The actor was invited back stage to join the band in their rehearsal room where not only did he get to jam but was also gifted a guitar signed by all 4 members. To make the evening even sweeter, the scene that was on everyone's mind that night when Metallica broke into the song at Lollapalooza was played on the screen behind them. Long live Eddie in the Upside Down! (Yes, I have my theory too!) https://blabbermouth.net/news/watch-news-helicopter-video-of-metallicas-performance-at-this-years-lollapalooza