Read this: The 20 greatest Metallica songs – ranked
Thankfully the videos have also been captured by fans on YouTube, so once these stories disappear after 24 hours, you can still watch them below.
Of course, back in April, Lars admitted that the longer lockdown goes on, the more likely it is that Metallica will begin work on a new album – the follow-up to 2016’s excellent Hardwired… To Self-Destruct. Is it possible that they might also be rehearsing new material at this jam session, then? Hmm…
"Will there be a Metallica quarantine record?" Lars pondered. "I can’t tell you, because, again, I don’t know how long the quarantine will last. But if you and I and the rest of the world are sitting here six months from now or a year from now, I’d say there’s a very good chance."