In their latest In The Tuning Room session, Metallica cover Judas Priest's Delivering The Goods, with drummer Lars Ulrich taking up vocal duty.
Following a run-through of Whiplash, the iconic thrashers blast through heavy metal anthem Delivering The Goods, opening track to 1978 album Killing Machine.
Skip to 7:35 in the video below for the song to start, but it's at 7:50 when Lars takes the vocal reins, giving his best guttural growl.
Speaking to Billboard back in 2014, Metallica frontman James Hetfield said that Judas Priest were "everything we wanted to be as a band starting out," adding that "If someone asked you to define what heavy metal is, that's one of the bands you'd show them."
And it looks like they still know those old tunes from the garage days.