Corey Taylor joined Slipknot in 1997.
Corey Todd Taylor ( born December 8 , 1973 ) is an American musician , singer , songwriter , actor and author , best known as the lead singer and lyricist of the American nu metal band Slipknot and the American hard rock and alternative metal band Stone Sour . Taylor joined Slipknot in 1997 to replace their original vocalist , Anders Colsefni .