During a recent Metallica concert in Celtic Frost's native Switzerland, Robert Trujillo and Kirk Hammett took the time to pay tribute to the band's late bassist Martin Eric Ain, who passed away in October last year at the age of 50.
The footage shows the two guys running through the song 'Procreation (of the Wicked)' with just guitar and bass and while Rob's vocals sound great, we can't help but wonder how much better it would have sounded with a drum beat behind it.
Still a really cool gesture to the now-defunct Celtic Frost as well as the Swiss audience in attendance.
Have a look!
Listen to Celtic Frost now.