20 Greatest HitsAmazon. com Those seeking an introduction to the "Rhinestone Cowboy" would be better served with the more focused (and less expensive) Very Best of Glen Campbell or perhaps the two disc Glen Campbell Collection. This collection does include Campbell's biggest and brightest, but often wanders off course to include covers, live takes, and instrumentals. Not that these make for bad listening they're simply not essential hits, as this set's title would