Mull Of Kintyre    b/w    Girls School

Wings first double A-sided single, and first credited to McCartney-Laine. By December 10th it had sold half-a-million copies (100,000 a week), and by the following week 800,000 passed over the record counters, obviously making it the fastest selling single of 1977.
For the One Millionth copy, EMI had been keeping count carefully, pressed it up and sold it to David Ackroyd who was then presented on December 23rd with a specially pressed Gold Disc.
On January 14th 1978, it sold 1,667,000 copies in Britain, which was significant in that "She Loves You" had sold 1.6 million and was the previous best selling single ever in Britain. Now though, it was "Mull of Kintyre".
(Since superceded by Band-Aid's charity record).
By the end of the month it topped 2 million sales (a first, of course), and eventually sold 2.5 million in the U.K. (which means over 1 in 30 people bought it !)
Being a huge hit world-wide, took it's total global sales to over six million copies.

The title of the song refers to the Scottish county of Kintyre, Campbelltown is the major town from whence the pipers came, and is about 11 miles away from Paul's Scottish farm.
And the Mull of Kintyre is the name given to the peninsular, there is not a town called "Mull".

The 21 bagpipers were each paid the standard musicians union fee, and after the hugeness of the hit, Paul was criticised in the press for being stingey, so he sent off a cheque for £200 to each piper.

Several artists, the most notable being Glen Campbell, have recorded versions of "Mull of Kintyre",
none have had a hit with it.

The "other" A-side, Girls School was written by Paul and originally was entitled, "Love School", being inspired by newspaper adverts for pornographic movies.

The single was released in a picture sleeve which had photography by Graham Hughes.
And Paul reverted back to the Capitol labelling again (although, still with a Parlophone number !)