While at Abbey Road recording I Robot and Two's a Crowd, some guy in the studio next door enlisted Ian and David to provide some authentic Scottish backing vocals to a song he was working on.
Mull of Kintyre
became the top-selling single in UK history for Paul McCartney and Wings.
The picture sleeves singles pressed in the UK and Israel are also pictured above.
Tracks Ian Sings On
Mull of Kintyre