Maybe he could explain his lips instead?

Money making idea: Having a Mick Jagger autobiography. You know his fans would purchase it in droves.

Money losing idea: Paying him to write it before he writes it.

Outcome: Jagger says writing about his life was "too boring."

Living in the past is not for everyone. And frankly, even if he wrote it I would be quite unlikely to read it. I would be more likely to read Jenna Jamesons' autobiography (an opportunity I passed on despite encountering said tome in the library yesterday).

However, if he engaged in an explanation of why his lips look like that (add Steve Tyler to the mix) and I might think about a purchase...