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Last night, Metallica was streaming a live performance for BlizzCon, an annual gaming convention, when viewers watching on the Twitch Gaming stream suddenly had the power and glory of heavy metal replaced with the kind of generic music you would hear while you were on hold, waiting to fight a cellphone bill.
Apparently it was done to avoid copyright issues. The new Metallica/Muzak Mashup is glorious, especially with the band’s facial expressions...