Joan says she's grateful for the influence she's had on Miley and other young women.
"It's what I've always wanted to do from the beginning in the Runaways—to inspire other girls to either play rock and roll or just do what they love," Joan says. "You can't go wrong if you do what you love and you try. If you have difficulty, I mean, life is difficult. So I think you have to give it a shot. If you don't give your dreams a shot, you'll always regret it."