Sessions continued there in January and February 1979. During that time, the band recorded a non-album single – the disco-styled "Goodnight Tonight", backed with "Daytime Nighttime Suffering" – as a release to coincide with the airing of the long-delayed "Wings Over the World" special. While noting that McCartney and Laine's relationship was beginning to unravel at this point, Sounes compares the freshness of these new recordings with the drawn-out sessions for "Back to the Egg" and writes that the album "was now so overworked it might more aptly have been titled "Over-Egged"". Impatient at the amount of time being spent in the recording studio, Laine publicly admitted that he was "desperate" to go out on tour.