Steven Tyler and Joe Perry joined Letterman for a chat; the host asked the pair, famously referred to as "The Toxic Twins," about their offstage indulgences when they were in their 1970s prime.
"We were an army marching on," said Tyler. "We were raping and pillaging and going from town to town. New York's Madison Square Garden…wherever it was…and when it's done, you don't go back and go bowling, or knit in your room." Watch video from the performance here