There was much anticipation for the band's second album following the success of their 1999self-titled debut, resulting in Iowa premiering in top ten album sales in nine countries. Positively received by both fans and critics alike, the album included many of the band's hits including "Left Behind" and "My Plague", which were both nominated for a Grammy Award in 2002 and 2003, respectively. Critic John Molvey hailed the album as the "absolute triumph of nu metal." While more technical than their debut, Iowa is also considered to be the band's heaviest album. The album has been certified platinum in Canada and the United States.
Corey Taylor is a founding member of Stone Sour, and has released three studio albums with the band. Taylor joined Slipknot in 1997 to replace their original singer Anders Colsefini. He has released four studio albums with the band. Taylor constantly alters between bands, as seen in 2001, after the release of Iowa, where he rejoined Stone Sour immediately after touring. He has worked with several bands, including Junk Beer Kidnap Band, Apocalyptica, Anthrax, Soulfly, and Avenged Sevenfold. Taylor writes and sings in styles that vary by genre. Slipknot drummerJoey Jordison said that he has "really good melodic singing." Taylor was ranked number 86 in Hit Parader's Top 100 Metal Vocalists of All Time.