The Blondie singer has admitted she "tried everything", including heroin, and at one point in the late 80s was addicted to drugs.
When asked if she was a junkie, Debbie replied: "Absolutely. I guess for a couple of years."
She described that period of her life as very difficult, saying: "It was depression- our record company dropped us, our manager walked out, the Internal Revenue Service (IRS) walked in. Everything fell apart and I fell apart along with it. But ice cream was great."
The `Heart of Glass` hitmaker did, however, turn things around, going to rehab with her then boyfriend, Blondie guitarist Chris Stein.
She added: "Chris did it at the same time, we did it together. I think we both decided that it was overdue."
Debbie also admitted she has tried drugs since, but has remained largely sober, and doesn`t even drink alcohol.
She said: "I think there was a short period where I did some cocaine, but I`ve never got seriously involved since then.
"I don`t have the head for alcohol. I don`t have the capacity. So, if I drink it`s a short evening - very short and very cheap!"
Blondie`s new album `Panic Of Girls` is released on May 30.