By rock and roll’s demented logic, that can be kind of OK too, as those artists failing to survive the crucible achieve a sort of special martyrdom, and also become reliable commodities in perpetuity. A lot of times what happens next is grim, sometimes lethal. Rock and roll is a business largely founded on a kind of voyeuristic cannibalism: Take the most vulnerable, volatile performers you can find, place them in the most intense circumstances imaginable, and watch what happens next.