Metallica is rock-deep in a massive stadium tour that promises to melt the socks off of even the most stoic in attendance. Over multiple decades, the frenetic rockers have managed to build one of the most dedicated fanbases, proven recently by a stop in Denver, Colorado, to a packed — some 70,000 people — Mile High Stadium. 

And damn near all of them had hands and fingers, which they proudly displayed in solidarity to one another advertising a love of rock. Play along with us: How many devil horn rock hands can you spot in the following pictures? Winners receive the opportunity to gloat amongst friends.

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[All photos by Mike Kvackay]

Answer: Honestly, we didn't really count. It's Friday and we have shit to do.