Song "Mull of Kintyre" was written together by Paul McCartney and Denny Laine and was recorded during a break in the London Town album sessions.

Guitarist Jimmy McCullough and drummer Joe English left the group during the London Town recording, so the Wings lineup consisted only of founding members Paul and Linda McCartney, as well as multi-instrumentalist and songwriter Denny Laine. All three of them met at the Spirit of Ranachan studio in Campbeltown and were accompanied on bagpipes and drums by the Campbeltown Pipe Band.

"Mull of Kintyre was released as a double-A-side with London Town's "Girls' School" on November 11, 1977. The song quickly climed up the charts and eventually spent nine weeks at the very top, including over the 1977 Christmas period when it was the numer 1 song played on the radio across the world.

It was the first ever single to sell over two million copies, and beat The Beatles' "She Loves You" to become the biggest-selling single of all time in the UK.

Years after Wings split, the song's co-writer Denny Laine re-recorded the song for his own 1996 album Wings at the Sound of Denny Laine.