In September 1977 , the McCartneys had a third child , a son they named James . In November , the Wings song " Mull of Kintyre " , co-written with Laine , was quickly becoming one of the best-selling singles in UK chart history . The most successful single of McCartney 's solo career , it achieved double the sales of the previous record holder , " She Loves You " , and went on to sell 2.5 million copies and hold the UK sales record until the 1984 charity single , " Do They Know It 's Christmas ? " '' London Town '' ( 1978 ) spawned a US number-one single ( " With a Little Luck " ) , and was Wings ' best-selling LP since '' Band on the Run '' , making the top five in both the US and the UK . Critical reception was unfavourable , and McCartney expressed disappointment with the album . '' Back to the Egg '' ( 1979 ) featured McCartney 's collaboration with a rock supergroup dubbed " the Rockestra " . Credited to Wings , the band included Pete Townshend , David Gilmour , Gary Brooker , John Paul Jones and John Bonham . Though certified platinum , critics panned the album . Wings completed their final concert tour in 1979 , with twenty shows in the UK that included the live debut of the Beatles songs " Got to Get You into My Life " , " The Fool on the Hill " and " Let it Be "
twenty shows in the UK
Wings UK Tour 1979
Paul McCartney