The document , titled Name_conferral `` My Twisted World : The Story of Elliot Rodger '' , was made available on the Internet and became Becoming widely known as his manifesto .

The headliners for the first edition of the festival were Cradle of Filth and Twisted Sister .

The festival has also hosted prominent international acts such as Alice Cooper , Twisted Sister , Iggy Pop , AC/DC , Metallica , Mika , Slipknot , Guns n ' Roses , Eminem , Nirvana , Hole , Foo Fighters , blink-182 , The Strokes , Green Day , Faith No More , My Chemical Romance and Red Hot Chili Peppers .