The Dark Side of the Moon album
had Alan Parsons
doing the studio
work. Yup, the guy from the Alan Parsons Project
. When Alan became autonomous
and famous from his "project", the boys from Floyd were asked about Mr. Parsons. They said the studio work could've been done by a monkey, and Alan didn't make "the sound". Alan disputes this.
This album also happens to be the one album that has been in Billboard's Top 200 albums list for the longest period of time... over 10 years! Now that's staying power.