Dying for a taste of the new Slipknot material? You can hear a 30-second clip of "All Hope is Gone" on Amazon.  The song is the first single from the band's upcoming, currently-untitled fourth studio album, which is due out August 26th via Roadrunner Records. The track will be available for digital purchase on the same site on June 20, and a CD single will follow on the 24. The Iowa-based nine piece sounds much better than I was expecting on this clip. You can hear the clip right here.