As of the writing of this article (July 4), Metallica’s “Master of Puppets” is sitting at No. 26 on Spotify’s Top 50 – Global playlist. On the Top 50 – U.S. playlist, the track is even higher, clocking in at No. 12. Hanging around the thrash legends are artists like Justin Bieber, Doja Cat, Bad Bunny and Beyoncé. “Master of Puppets” has landed on other major Spotify playlists, too, including big on the internet, which currently features 131 other songs and is nearing 2 million likes. So, why is Metallica’s titletrack to their epic 1986 album trending 36 years later? Look no further than the Ne…