It's less revolutionary than the title suggests, but I guess people like Charly Manson, Docc Corbin Dart from American HC legend the Cruzifucks and Vic Bondy out of Chicagos HC scene caused at least some cracks in the system.
Listen to loner folks and singing outsiders. Old material from warped tapes and contemporary lofi tunes, highly compressed and rare. With Michael Chapman, Thurston Moore, Ryley Walker etc... Leave a note if you found something new! More infos and dl in the comments!