Fan-filmed video footage of SLIPKNOT's July 1 performance at the Mountain View, California stop of the Rockstar Energy Drink Mayhem Festival can be seen below.
SLIPKNOT guitarist Jim Root was forced to miss the first couple of dates of the Rockstar Energy Mayhem Festival tour because a burst appendix. A statement issued by the band said that Root had been seriously ill for the past few weeks and that the situation could have been life threatening. He is likely to miss several more Mayhem Festival shows, although it is hoped he can rejoin the tour as soon as possible.
The statement read, "Jim has been seriously sick for the past two weeks and went to the hospital last week where he was advised that his appendix burst a couple weeks before and that it could have been life-threatening. Jim is at home recovering and is awaiting surgery to have pieces of his appendix removed and hopes to join the tour as soon as he is able. SLIPKNOT will continue to headline the Mayhem Festival and all other shows. We refuse to let our fans down and will not miss a single date. We will miss Jim greatly and our thoughts are with him. Jim sends his love to each and every one of our fans."
SLIPKNOT's stint on the Mayhem tour is the band's first U.S. trek since the May 2010 death of bassist Paul Gray.
The tour also features SLAYER, MOTÖRHEAD, ANTHRAX and others on the bill.
Following the end of the tour, the group will headline Knotfest, two festival dates put together by the band itself on August 17 in Council Bluffs, Iowa and August 18 in Somerset, Wisconsin.
SLIPKNOT will tentatively enter the studio sometime in early 2013 to begin recording its fifth album. In the meantime, a greatest hits collection called "Antennas To Hell" arrives on July 24.