After leaving The Beatles, McCartney launched a successful solo career and formed the band Wings with his first wife, Linda Eastman McCartney, and singer-songwriter Denny Laine. He has worked on film scores, classical music, and ambient/electronica music; released a large catalogue of songs as a solo artist; and taken part in projects to help international charities.
His song "Yesterday" is listed as the most covered song in history - by over 3,700 artists so far - and has been played more than 7,000,000 times on American television and radio. Wings' 1977 single "Mull of Kintyre" became the first single to sell more than two million copies in the UK, and remains the UK's top selling non-charity single.(Three charity singles have since surpassed it in sales; the first to do so—in 1984—was Band Aid's "Do They Know It's Christmas?", whose participants included McCartney.)