The song was recorded in February 1976 in the Jungle Room of Presley's Graceland home.
But the trip is about more than just two aging rock 'n' roll fans on a road trip to see the Jungle Room.
The album was engineered and mixed by Brian Reeves at the Jungle Room in Los Angeles.
Visitors are guided, by digital devices, through places like the Jungle Room, with a working waterfall as the centerpiece.
It used to be called the Jungle Room and Chet's Rendezvous.
A "Jungle Room" was maintained for thermal physiological testing on human volunteers.
The tour continues upstairs again, through the famous Jungle Room.
They moved to The Jungle Room in Burbank to finish the album.
It was recorded in the 'Jungle Room' of Presley's Graceland mansion.
Or 197,000, the number of square inches of carpet that once covered the floor of the Jungle Room at the "other" Graceland.