As far as the best metal songs of 2013 go, this one is a serious no-brainer. Black Sabbath's new nine-minute opus is bursting with huge Tony Iommi riffs and solos, a powerful bass presence from Geezer Butler, wailing vocals from Ozzy Osbourne high in the mix and a masterful fluidity throughout the entirety of 'God Is Dead?'

Although the track lasts nine minutes, the craftsmanship of this gem allows for a smooth ride to the finish and a quick thumb headed towards repeat once you've arrived. The Nietzsche-inspired track is pure Sabbath and one of the best tracks of 2013 so far.