Metallica's Lars Ulrich said in the American tour some name also include

Metallica drummer Lars Ulrich said the bands that in the American tour Slayer, Megadeth and Anthrax have also include.

Ulrich told RollingStone.com, “We are looking to book something on the East Coast because of the success of this – it should hopefully come together in a week or two. Maybe we’ll do somewhere in the Midwest and South, too.”

Although it looks like big four U.S. trying to cover all areas are, Ulrich said that a full-blown metal fans should not expect U.S. tour.

“Still, I don’t think it will turn into a 40-date arena tour; that would make it less special. I like the fact that there’s an element of chaos to the whole thing. It shouldn’t be sterile, streamlined and perfect: it needs an edgy underbelly to remain authentic".