4. Born Again (1983): Deep Purple fans might have initially been excited to hear that Ian Gillian would be recording a record with Black Sabbath. Whatever allure it may have held on paper, the record itself was lackluster, and the subsequent tour was so catastrophic that it actually informed some of the most embarrassing moments from the film This is Spinal Tap. With songs like “Zero the Hero” and “Digital Bitch,” and Iommi’s flute playing, it’s easy to understand why most parties involved have tried to sweep this album under the proverbial rug.