Steve Tyler has estimated that he wasted over $20 million (€13 million) on drugs.
Promoting his autobiography, the Aerosmith frontman admitted that his addiction could have killed him "several times over".
In an interview with People, he said: "I blew 20 million. I snorted my Porsche, I snorted my plane, I snorted my house in that din of drugs and booze and being lost.
"I kept my medicine cabinet on stage, in a 14-inch drum head, the bottom of which contained...one Dixie cup with a straw and blow in it and the other with Coca-Cola and Jack Daniels in it."
The 64-year-old 'American Idol' judge added: "Left to my own devices I probably would have been dead several times over."
Recalling the moment he realised his failings, Tyler said: "When my son looked me in the eye, crying, and said, 'Dad, you were so high last night and I was afraid', I needed that.
"My best thinking got me back into rehab, so I gotta keep my thinking in check and keep going to meetings."