The Rockstar Mayhem Festival Tour kicked off this past weekend in San Bernardino, CA, and the organizers shot video throughout the day, including footage of fans and artists alike taking in an all-day marathon of metal. The clip below includes interviews with Matt Heafy of Trivium and Adam Duce of Machine Head, both of whom are signing at the festival. As you can see from the clip, the line gets kind of long, but those waiting seem to think it's worth it. You can also pre-order Trivium's In Waves (due out August 9) and Machine Head's Unto the Locust (due out September 27) at the Roadrunner tent, and get a free gift for doing so!

Text IWTRIV to 67463 on the day of the show to receive signing times and be automatically entered for a chance to win an autographed guitar from Trivium!

Text MFHEAD to 67463 on the day of the show to receive signing times and be entered for a chance to win an autographed guitar from Machine Head!

Here's the video: