Musically and lyrically, "Dirt" was far more sinister than anything that had come before it in grunge music. Nearly half of the album's songs are explicitly about heroin addiction, which we'll find is the one true villain in the Alice In Chains story. In this episode, we talk about how metal impacted the earliest days of Seattle grunge, the vocal harmonies between Layne Staley and Jerry Cantrell, who "Rooster" is, and how drug abuse brought one of the best bands of the early '90s to a screeching halt.