A friend who lives in the Knoxville, TN area where Halestorm/In This Moment played last night messaged me saying that members of ITM were on the local radio station for a interview & stated they were playing a big US tour in the summer with Rob Zombie & Deftones.
So Mayhem Fest is shaping up to possibly look like this:
Five Finger Death Punch
In This Moment
With possibly a Nuclear Blast Records stage.
9-05 Iron Maiden, Megadeth