Would you expect anything less from the metal icons in a local supermarket? 

As TMZ reports, Metallica were in a Hollywood supermarket this week filming for US comedian Billy Eichner's Billy On The Street show, where they jammed along with a deli worker as their hit song Enter Sandman played throughout the store.

Usually we'd be against anyone taking over lyrics from James Hetfield, but the enthusiasm this guy shows is way too infectious. 

Check out the footage below.