As bassist and lyricist for Black Sabbath, Geezer Butler has a lifetime of rock and roll stories to tell. From the band’s working class roots in Birmingham to their early days as a traditional blues band to their transformation into the quintessential heavy metal group, Geezer tells Marc how he brought it all together with Ozzy Osbourne, Bill Ward and Tony Iommi, how it eventually fell apart, and how they picked up the pieces. They also talk about Frank Zappa, the Beatles, and the true meaning of Iron Man.