Metallica have shared footage of themselves jamming “Master Of Puppets” with “Stranger Things” actor Joseph Quinn backstage at Lollapalooza in Chicago, IL. You can check that out below. As previously reported, an updated version of the track featuring “additional guitar tracks” from Robert Trujillo’s son Tye Trujillo was included in a scene in which Quinn’s character, Eddie Munson, was performing inside the “Upside Down.” Footage from that scene was also incorporated into Metallica’s Lollapalooza set.