Iowa Songwriting Credits by Slipknot

Iowa is the second studio album by Slipknot, released in August 2001 on Roadrunner Records and produced by Ross Robinson and Slipknot, the band's most extreme and abrasive release, deliberately moving away from the melodic elements that had made the debut accessible while doubling down on the sonic density and psychological intensity that had distinguished them from other nu-metal acts. The band wrote all material collaboratively; the album contains 15 tracks including the 15-minute title track, which is largely performed through screaming and dissonant noise and represents the farthest extension of the band's experimental impulses away from commercial rock format. 'Left Behind,' 'The Heretic Anthem,' and 'Disasterpiece' were the principal tracks; 'The Heretic Anthem' reached the top ten on the Mainstream Rock chart. Iowa debuted at number three on the Billboard 200 with 169,000 first-week sales and has been certified double platinum in the United States, a commercial performance that confirmed the band's commercial viability regardless of the abandonment of melodic accessibility. The album is regarded by critics as the most artistically uncompromising of the Slipknot catalog and the record that most clearly demonstrated the outer limits of their creative ambition.