It?s amazing they can still walk, period. Chronicling these grizzled rock survivors from their ?70s heyday through their sobriety-fueled comeback, this oral history finds Steven Tyler, Joe Perry, and cohorts readily copping to excessive partying, under-the-influence record making, band-wife catfights, lost fortunes?and drugs, lots of ?em. Each time they reach a new low in self-abuse, Aerosmith top themselves, making Walk This Way a rarity among rock memoirs?a what-now? page-turner. (Even the making of their Geffen comeback albums turns out to be traumatic.) Only the future-looks-bright ending rings a tad false; with a band this volatile (and given the comparative flop of their latest release, Nine Lives), it?s almost worth waiting for a ?revised edition? to see what happened this year.