Following the release of Wings’ final album, Back to the Egg, in 1979, Paul McCartney began working on his second solo album, McCartney II. In the midst of those sessions, McCartney retreated to his farm where he laid down all the tracks himself for “Wonderful Christmastime.”
At that time in his career, Paul had been experimenting with a synthesizer called the Sequential Circuits Prophet-5. That’s what made the “boing-ing” sound that you hear throughout the song. According to Songfacts, that synthesizer was also used on Kim Carnes’ “Bette Davis Eyes” and the Doobie Brothers’ “What a Fool Believes.”
Most of the video for “Wonderful Christmastime” was filmed at a pub called the Fountain Inn in Ashurst, West Sussex. Some footage was also filmed at the Royal Hippodrome Theatre in Eastbourne, where Paul McCartney rehearsed for his 1979 UK tour. Although the members of Wings are not on the recording, they do appear in the video, as does Paul’s late first wife, Linda.