Kari Ann Peniche, the former Playboy model who was the third person in the Eric Dane and Rebecca Gayheart steamy homemade nude tape, slammed Dr. Drew and her stints on his shows exclusively to RadarOnline.com before she entered rehab Thursday to treat her crystal meth addiction.

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"Celeb Rehab f*cked me up worse than before I got there so this time I want real treatment," Kari Ann exclusively told RadarOnline.com before checking herself into a treatment center.