"It's got everything a great Les Paul is supposed to have," says Perry. "The neck isn't quite as fat as, say, a '54 Goldtop, but it's still got a good, meaty neck. It's not a high-output guitar, so it's got a lot of tone � And it's got all the natural sustain and warmth, and when you turn it up it growls."

Slash, Boston-area guitar legend Billy Loosigian and Eric Johnson have all owned number 9-0663 over the years, as it did the rounds through the various ups and downs of Aerosmith's career.