On this week's episode, we look at the second LP by quite possibly the most influential band to wear a pentagram: Paranoid by Black Sabbath. Black Sabbath may not have invented the genre of "heavy metal," but the group certainly did more to mold it into the doom-and-gloom, distorted, heavy blues-based music it became associated with. Paranoid finds lead singer Ozzy Osborne at the peak of his singing powers, groove-master Tony Iommi at the top of his game, and the bottom-heavy rhythm section of bassist (and lyricist) Geezer Butler and drummer Bill Ward in exceptional form. This album is a metal classic, featuring such genre standards as "Paranoid" (written in around an hour), "Iron Man" (which gained new a new audience due to its association with certain Marvel Comics movies), and "War Pigs," and reaching the top 20 on both sides of the pond.