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

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

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

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

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

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Black Sabbath interview: Ozzy Osbourne and Geezer Butler reflect on the end of a very heavy era

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BLACK SABBATH's OSBOURNE Explains Why Drummer TOMMY CLUFETOS Doesn't Play On '13'