With Metallica on the promotional carousel for their new album 'Hardwired... to Self-Destruct', it means that the metal icons are wheeling out their old tunes for various viral videos.

They recently performed 'Enter Sandman' on toy instruments with Jimmy Fallon, but now they've been captured on film by TMZ in a Hollywood supermarket headbanging along to the tune, with the guy behind the deli counter 100% committing to his role, in fairness.

Our fave Billy Eichner is also on hand to lead proceedings, which means that it's gotta be for a future episode of Billy on the Street. Or Billy in the Supermarket, if you will.

Watch the madness unfold below: