The legendary Blondie frontwoman has criticised music in her home country for being too conservative and believes the eccentric 'Born this Way' hitmaker is a breath of fresh air.
She said: "Gaga is truly talented and slightly mad. I find her encouraging.
"It's such a conservative period in the US. We have even had attempts at censorship, which I find appalling and terrible.
"Artists like Gaga are necessary during periods like this."
As well as being a fan of Gaga, Debbie also praised Madonna as a "force to be reckoned with", though she admits she used to hate the way the singer copied her style.
She said: "Was I aware Madonna was copying certain elements of my style? Yes. Did I mind? Some parts yes, some parts no. It was love/hate.
"I loved her wildness and sexuality. 'Borderline' was the material I found most interesting. She is a force to be reckoned with in the industry - and I commend that."