While there’s been a ton of talk about the “Big Four” tour (Metallica, Slayer, Megadeth and Anthrax), none of the bands have directly addressed it… until now. Metallica made a post about on their site today suggesting that their Sonisphere appearance in Europe this summer is the start of something more.

You’ve been posting and chatting about it for months and we’re here now to confirm it . . . Metallica, Slayer, Megadeth, and Anthrax will all share the same stage for the first time EVER! Look for the four of us at the Sonisphere shows in Warsaw, Poland and Prague, Czech Republic on June 16 and 19, 2010 with a few more of the festival dates still in the works, you can be sure these shows won’t be the only ones.

In the words of Lars: “Who would have thought that more than 25 years after its inception, thrash metal’s big 4 would not only still be around and more popular than ever, but will now play together for the first time…what a mindfuck! Bring it on!”

While we’ve known the Sonisphere dates were happening, the suggestion that it could lead to more shows is promising. Sure, it doesn’t say anything about America, but we can hope. Also, Lars’ quote sounds way better if you read it in an imitation of him. First on Anthrax’s ‘to do’ list? Figure out that pesky singer problem.