Conversation so far:
How did Corey Taylor get involved with the band, Slipknot?
In Des Moines, Iowa, Joey Jordison, Shawn Crahan, and Mick Thomson approached Corey Taylor asking him to join Slipknot.
Was Corey Taylor in a band before Slipknot?
Corey Taylor and Jim Root joined Stone Sour and re-started the band around 1995. He joined Slipknot in 1997.

Question: When was his first show?
Self-contained rewrite: When was Corey Taylor's first show with Slipknot?