Janice Dickinson Janice Dickinson

Janice Dickinson said she contemplated suicide while on Celebrity Rehab with Dr. Drew.

On Wednesday's Season 4 premiere, a crying and distraught Dickinson, who's being treated for alcohol abuse, broke down before her counselor. Sober for years, the supermodel said she was "ashamed" for having recently "slipped."

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Watch Dickson's breakdown below: