The legal papers were delivered to FitzRay's, a venue in London, Ontario, where Sandman were due to perform at the weekend. It reads: "We are kindly writing to request that Sandman stop using the name Metallica, the phonetic equivalent of Metallica or any of Metallica's logos on or to identify or promote live musical performances."

Di Taranto posted an image of the front page of the letter on Facebook, adding: "So as some of you may or may not know, in my spare time from Warmachine, I play in a couple of tribute acts - one being a ‎Metallica tribute called Sandman.

"Last night when we arrived at the venue for our show in London, we were served with cease and desist papers courtesy of Metallica's lawyers. Quite funny."