Izzy Stradlin, Axl Rose, Slash and Steven Adler of Guns N' Roses, performing in California in 1986. Marc S Canter/Getty Images hide caption

itoggle caption Marc S Canter/Getty Images

The Red Hot Chili Peppers have been together for 25 years. Stephen Stickler/Courtesy of It Books, an imprint of HarperCollins publishers hide caption

itoggle caption Stephen Stickler/Courtesy of It Books, an imprint of HarperCollins publishers