Butler Still Doesn't Know What Rubin Did on Black Sabbath's '13

He called the producer's way of thinking 'ridiculous.'

Iron men of Sabbath to roar through again – Orange County Register

Rick Rubin - Wikipedia

Geezer Butler on Rick Rubin Producing Black Sabbath: I Still Don't Know What He Did

Vinyl Review: Black Sabbath – 13

Iron men of Sabbath to roar through again – Orange County Register

Geezer Butler Says Rick Rubin's Studio Approach Was 'Ridiculous

Every Black Sabbath album ranked, from worst to best

Geezer Butler - What Black Sabbath's 'Iron Man' Is Actually About

Black Sabbath share an inside look at the recording of their new album - Fact Magazine

Black Sabbath: 'We named new album '13' to piss off record company

Black Sabbath Set Release Date for '13' Album produced by Rick Rubin

BLACK SABBATH's GEEZER BUTLER Still Doesn't Know What Producer RICK RUBIN Did On '13' Album

Geezer Butler - Far Out Magazine

Geezer Butler Says Rick Rubin's Studio Approach Was 'Ridiculous

Let's talk about Rick Rubin. : r/blacksabbath