Rockstar Energy Drink Mayhem Festival, the heralded hard rock and metal event of the summer, kicked off last night (Saturday, July 9) at the San Manuel Amphitheater in San Bernardino. The tour features three stages with tons of bands ripping it up all day long. Disturbed, Godsmack, Megadeth, Machine Head, In Flames and Trivium are headlining the festival. Megadeth joins the festival today at the Shoreline Amphitheatre in Mountain View, California after the band played just last night at the Sonisphere festival in Amneville, France wrapping up its summer European tour with the "Big Four". For tour info and tickets, check the Killing Road.
