Star 'glad I survived' addiction
Girls Aloud star Sarah Harding said she has "been to hell and back" after getting addicted to sleeping pills.
The 30-year-old star said she took the prescription pills for four years and only kicked the habit after three weeks in rehab in South Africa.
She told The Sun: "I'm just glad I survived.
"My drinking was out of control and I was addicted to sleeping pills. It was an awful combination."
The chart star - who scored hits such as Love Machine and Biology with the girl group - sought help for depression and alcohol abuse last October when her relationship with DJ Tom Crane fell apart.
She said: "I've been to hell and back."
Sarah said she started drinking to get "more confidence" after she found herself in the spotlight in the wake of the group's success, but the drinking got worse after her split from Tom in September.
The singer, who said her bandmates had been in touch to support her, said she wanted to concentrate on her acting and music career.
She said: "Now I think it's about being single and concentrating on myself and my career and who knows what the future holds?"