Russell is an Oklahoma-bred singer who wowed John 40 years ago and later fell off the map. The lead track from their duets album is a wise-cracking lament, with John echoing Russell's distinct nasal twang. The song transitions to an Electric Light Orchestra-style fantasia, before the keyboards take it all back to the chorus. The end result is both masterful and gratifyingly odd.

Photos: Random Notes: Justin Timberlake, Elton John, Bono, Gnarls Barkley

“(We're Not) The Jet Set”

George Jones and Tammy Wynette were still married when they recorded the tongue-in-cheek "(We're Not) The Jet Set." The lyrics, written by Nashville songwriter Bobby Braddock, who also penned Wynette's "D-I-V-O-R-C-E" and Jones' "He Stopped Loving Her Today," make fun of the good life by declaring, "We're not the Jet Set/We're the old Chevrolet set." Braddock recalled that while writing the song, he needed the name of a city that evened out the rhyme he had with "Riviera" and "Missourah." “I got out a Rand McNally atlas," he said. "In the first part are the maps. The last part is an alphabetical listing of cities. I wanted a rustic, small-time sound. I went to the listing for Missouri. And I found 'Festus.' I loved the sound of it."