Tony Iommi Is Still Puzzled by Awkwardness of Making Sabbath’s Final Album With Rick Rubin  Ultimate GuitarTony Iommi says Rick Rubin would only talk to him during ‘awkward’ Black Sabbath ’13’ sessions  RayoTony Iommi opens up on working with Rick Rubin on final Sabbath record  ChaoszineTONY IOMMI Reflects On ‘Awkward’ Experience Making BLACK SABBATH’s 13′ Album With Producer RICK RUBIN  BLABBERMOUTH.NET