During the recording, there were rumors that there would be appearances by George Jones, Leon Russell, and Kris Kristofferson that ultimately did not happen. Waylon Jennings joined the backing band playing guitar, and provided backing vocals for "Stay All Night (Stay a Little Longer)", along with Jessi Colter and Doug Sahm. Several journalist were on hand during the recording, like Ed Ward from "Creem", who later commented, "I'd underestimated the professionalism of all concerned, not to mention the core ensemble of musicians themselves, who decided to test the sound of the studio with a spirited version of 'Under the Double Eagle,' which left me awestruck: Willie wasn't only a great songwriter, he was a goddamn virtuoso on that battered Martin guitar of his!"