Metallica opened up their 1987 covers EP The $5.98 EP – Garage Days Re-Revisited with "Helpless" by Diamond Head and they're still breaking it out live from time to time! Check out the band playing "Helpless" at the Unipol Arena in Bologna, Italy on February 12, 2018, which is one of the four times Metallica played the track on their WorldWired Tour.
If you're looking for more Metallica, the band also just unveiled their first vinyl club subscription series.
