California is the American Mecca for thrash metal. With top thrash innovators such as Metallica, Testament, Autopsy, Exodus, Death Angel and more having risen to fame together in the early '80s, a very tight-knit brotherhood has been created between these musicians. Despite this bond, Metallica and Testament have never toured together, and during our recent chat with Testament singer Chuck Billy, he told us it's his "dream" for the two acts to share a bill.

Between Metallica and Testament, there are 62 years of thrash history shared among the two acts, with Metallica forming on 1981 and Testament coming together in 1983. Both bands are constantly performing with the world's biggest thrash acts, such as Metallica headlining numerous 'Big 4' shows with Slayer, Megadeth and Anthrax, while Testament toured extensively in 2012 with Anthrax and Death Angel. Testament are even scheduled to headline another iconic tour in 2013 when they hit the road with Overkill.

With these simple facts presented, it's almost unfathomable to believe that Metallica has "never toured or played" with Testament, but according to Billy, it's 100 percent true. "The band that we’ve always looked up to is Metallica," reveals Billy. "From day one the songwriting, the aggression of the music, the vibe and what they stood for has always been an iconic goal for us to try and reach. Unfortunately, we’ve never gotten to perform with Metallica. So hopefully one day they look down and say, 'They've come to our shows in the Bay Area, but we’ve never toured with them or played with them before.' Maybe one day we will get our dream met and we'll be able to play some shows and share a stage with them. They’ve always been one of those bands we’ve looked up to. I’ve always looked up to James [Hetfield] as a songwriter and a performer."

We can declare with a deep sense of certainty that there is no thrash fanatic out there who would miss a Metallica / Testament tour, so we issue this challenge to Metallica; once you're finished writing and recording the new album, we call upon you to draft Testament for your next world tour! Who agrees with us? Let your voices be heard in the comments section below.

Stay tuned for our full interview with Testament's Chuck Billy.