The 2014 Rock USA festival has unveiled the bands playing this year. The event, which will be held July 16-19 at Ford Festival Park in Oshkosh, Wis., features Korn, Slayer, Rob Zombie, Five Finger Death Punch,  Three Days Grace, Seether, Theory of a Deadman, Rob Zombie, Megadeth, All That Remains, Hellyeah, Korn, 3 Doors Down, Halestorm, Black Stone Cherry, Five Finger Death Punch, Slayer, Machine Head, Skid Row and Kill Devil Hill. Tickets will go on sale Thursday, April 3 at this location.