Rockstar Mayhemfest gallery Posted by Headbangerwoman on July 9, 2012 Posted in: Live Shows, Music, Visual. Tagged: Gwar, July 1, Motorhead, Mountain View, rOCKSTAR mAYHEM, Shoreline Amphitheatre, Slipknot. Leave a comment ; Share Headbangerwoman.comTweetEmailPrintShare on TumblrLike this:Like Loading... Related Posts navigation ← People and Pets Ted Nugent drummer DUI →