Metallica Rock the Colbert Report with “Master of Puppets” and “For Whom the Bell Tolls”

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".

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