rnrnThe explosive fourth season of Celebrity Rehab With Dr. Drew debuts tonight on VH1 at 10 p.m. ET/PT. This year’s cast — Jason “Gummi Bear” Davis, Janice Dickinson, Leif Garrett, Jeremy London, Frankie Lons, Rachel Uchitel, Jason Wahler and Eric Roberts — all publicly battled their demons in the harsh glare of the spotlight before [...]