If you're ever grocery shopping in the Hollywood area, there's apparently a small chance you'll find Metallica rocking "Enter Sandman" with comedian Billy Eichner. The clip provides no context whatsoever, but the presence of Eichner could mean that it's a part of his hilarious Billy On The Street show.
Or Metallica and Eichner are just buds and like going to supermarkets and blasting major radio hits. We're not judging.
[via The PRP]