Dr. Drew Pinksy is entering his fourth season with VH1's Celebrity Rehab, and RadarOnline.com brings you the first behind-the-scenes photos of the cast.
The pictures were taken Tuesday and feature Janice Dickinson, Jeremy London, Leif Garrett and other cast members on the set who will be fighting various addictions under the guidance of Dr. Drew.
Noticeably absent from the photos is New York party planner Rachel Uchitel, the most recent addition to the show. As RadarOnline.com previously reported, Uchitel used the sleeping pill Ambien with Tiger Woods when they engaged in sexual relations.
"I don't know how to deal with us possibly being addicted to prescription meds," Uchitel wrote to Woods during a 2009 email exchange in which he asked her if it "would be possible for you to get us some more Ambien."
Reality-TV star Tila Tequila was the first celebrity to sign on for the program after admitting she needed help saying, "I finally admitted to myself that I cannot rely on taking prescription pills everyday for the rest of my life!"
Tequila withdrew from the show before filming started for reasons that are still unknown.
The new season of Celebrity Rehab will air on VH1 later this year.