It happened at a church picnic in Woolton, Liverpool. 16 year-old John Lennon had started a band called the Quarrymen, they were performing at the picnic. McCartney, 15, played a few songs for him and, a few days later, Lennon asked him to join the band.

The band later changed their name to 'Johnny and the Moondogs', before settling on 'The Silver Beatles', shortened to 'The Beatles'.

Armstrong died in New York, at the age of 69.

He was one of the most influential musicians of the 20th century. Armstrong introduced the style 'swing' to the world, was a jazz trumpeter and vocalist of international standing.

Armstrong picked up many nicknames during his career, including 'Satchmo', short for "Satchelmouth"; "Dippermouth"; and "Pops."