Toxicity is the second studio album by Armenian-American heavy metal band System of a Down, released on September 4, by American Recordings and Columbia nsd-travel.coming the heaviness and aggression of their eponymous debut, it features more melody, harmonies, and singing than the band's aforementioned nsd-travel.comrized primarily as alternative metal and nu metal, Toxicity Genre: Alternative metal, nu metal. "Toxicity," System of a Down's second album, remains their best effort. They mashed together thrash metal and melodic hard rock (yes, I said that seriously) to the point that Serj Tankian, could jump from his harsh shouting to the tuneful but complex "Aerials."/5(). 15 rows · Jul 09, · Toxicity is System of a Down's second album release. Produced by Rick .