Even If You Don't Like Metal, Jimmy Fallon and Metallica Singing "Enter Sandman" Is a Must-Watch

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We love Jimmy Fallon's classroom instruments series, but honestly, we never anticipated Metallica would agree to it. Sure, Adele did it. So did Idina Menzel and The Lonely Island, but Metallica? They're too hardcore for that . . . right? Nope! The metal band rocked out with Fallon and The Roots on Wednesday to the tune of "Enter Sandman," and it's actually pretty glorious. Take a look!