As Black Sabbath wraps up it's farewell tour, Ozzy Osbourne and Geezer Butler looked back on the band's history for an article in Rolling Stone magazine. During it, Ozzy equated the success of the band to being something of a 'clever mistake' and attributed their ability to become such a big band despite not producing conventional hit songs to the working dynamic he and Tony Iommi managed to develop. As Osbourne put it, '...what Tony Iommi and myself have been through with each other personally, I've never took it away from him. There's no other guy on the face of the earth that can come up with riffs like him.'
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