Conversation so far:
When was Corey Taylor born?
Corey Todd Taylor was born on December 8, 1973.
Where was Corey Taylor born?
Corey Todd Taylor was born in Des Moines, Iowa.
Who was Corey Taylor's mother?
Did Corey Taylor move or did he grow up in Des Moines?
By age 15, Corey Taylor was living in Waterloo, but later set out on his own and ended up at his grandmother's house in Des Moines.

Question: When did he get started in music?
Self-contained rewrite: When did Corey Taylor get started in music?