After nearly four decades of drumming for one of hard rock’s most iconic and notoriously debauched bands, Aerosmith’s Joey Kramer has lived through the stuff of fiction. His recent book, Hit Hard: A Story of Hitting Rock Bottom at the Top (HarperOne), though, is all too real. (Incidentally, Kramer has also launched a rhythm-game iPhone app of the same name.) In the book, he details the personal demons that have troubled him, as well as the rock-and-roll excesses that famously led to the band’s temporary demise in the ’80s. Kramer recently spoke to Revolver about the issues contained in his memoir and about Aerosmith’s enduring status in the music landscape.