Fergie herself acknowledged this during an interview in 2006.
Meth was “the hardest boyfriend I ever had to break up with,” the singer said to Time magazine. “I dug deep as to why I got there. It’s the drug that’s addicting. But it’s why you start doing it in the first place that’s interesting. A lot of it was being a child actor, I learned to suppress feelings.”
Fergie is certainly not suppressing feelings any longer because she's out with a new solo album.
It’s called Double Duchess and it’s her first solo outing in a decade. As she sat down with Nick Levine of iNews, the singer came clean about her journey to getting clean.
Fergie first started taking drugs as a teenager.
This was during her days in pop girl group Wild Orchard. In a 2012 interview with Oprah, the singer revealed that she started by taking ecstasy.
"I got into a scene," Fergie said, "I started going out and taking ecstasy."
“From ecstasy it went to crystal meth. With any drugs, everything is great at the beginning, and then slowly your life starts to spiral down. [I was] 90 pounds at one point.”
From there, things only got worse.
“At my lowest point, I was [suffering from] chemically induced psychosis and dementia. I was hallucinating on a daily basis. It took a year after getting off that drug for the chemicals in my brain to settle so that I stopped seeing things. I’d just be sitting there, seeing a random bee or bunny.”