Metallica have been circling the nation as they promote their new film "Through the Never". Well, they stopped by to see Stephen Colbert on The Colbert Report to jam a couple of their biggest hits.

If you're like me, then it never gets old seeing the boys in black rock out to "For Whom the Bell Tolls".

The Colbert Report
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Their performance of "Master of Puppets" was a web exclusive, so if you watched the show itself, you didn't get to see this.

The Colbert Report
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