Aside from people who didn't live to write their story, I'd love one from Rodney Slater of the Bonzo Dog Doo-Dah Band. He's given an extensive interview for an upcoming box set and I think that's the closest we'll get.
Charli XCX will have some stories too but now's not the time.
Although while we wait, it's been a real privilege to get an insight into her inner thoughts via GinAg (39)'s posts in the Enya quotes and quips thread