Guns N’ Roses bassist Duff McKagan, whose new book chronicles his downward spiral due to drugs, has a message of hope for his mentor, legendary funk star Sly Stone. Sly & The Family Stone are responsible for hits such as “Everyday People” and “Hot Fun In The Summertime.”

“Sly, You know I’m here for you,” Duff tells RumorFix Editor Richard Ayoub, who appeared on Dr. Phil on Thursday with Duff to talk about rock stars and drugs.

Sly, who admits he has a drug problem, is living in a van in the Crenshaw district in Los Angeles. This interview was heartbreaking for Duff, who considers Sly to be one of his heroes.

The author of It’s So Easy and other lies, who is now sober, says the tables have turned. “When I wasn’t so sober and he [Sly] was — he actually helped me out,” Duff told RumorFix.

During one of Sly’s sober periods, he was part of the intervention of Guns N’ Roses drummer Steven Adler, and Duff, who was still heavy into drugs, thought, “If Sly can make it, maybe I can.”