Bassist Robert Trujillo von METALLICA hat in einem Interview erläutert, dass das Gerücht, es gäbe eine gemeinsame Tour von METALLICA, SLAYER, MEGADETH und ANTHRAX, in konkreter Planung sei. Hier ein Auszug:
"I think it's great. We've had a few different conversations on the subject. I'm friends with (SLAYER's) Kerry King and had dinner with him a few months back, and it came up there. I think (MEGADETH's) Dave Mustaine is amazing. I've never had a problem with him personally. I think it'd be great if METALLICA shared the stage with his band. METALLICA's still great friends with (ANTHRAX's) Scott Ian. There's a lot of history there. I think it'd be great for metal. I don't think all four bands have played together at the same time."
