This January, VH1 will go inside a treatment center as eight addicts try to get clean under the supervision of Dr. DREW PINSKY.

ET has an exclusive first look at the cast: Former "Taxi" star JEFF CONAWAY, BRIGITTE NIELSEN, DANIEL BALDWIN, musician SETH BINZER, JOANIE LAURER (the former wrestler known as Chyna), and former "American Idol" contestant JESSICA SIERRA.