Conversation so far:
When was Corey Taylor born?
Corey Todd Taylor was born on December 8, 1973.
Where did he grow up?
He was mostly raised by his single mother in Waterloo, Iowa.
Did he do anything besides music when he was growing up?
By age 15, he had developed a drug addiction and had overdosed on cocaine twice.

Question: Did he attend rehab?
Self-contained rewrite: Did Corey Taylor attend rehab for addiction?