Sir James Paul McCartney CH MBE is an English singer, songwriter and musician who gained worldwide fame with the Beatles, for whom he played bass guitar and shared primary songwriting and lead vocal duties with John Lennon. One of the most successful composers and performers of all time, McCartney is known for his melodic approach to bass-playing, versatile and wide tenor vocal range, and musical eclecticism, exploring genres ranging from pre–rock and roll pop to classical, ballads, and electronica. His songwriting partnership with Lennon is the most successful in modern music history.

McCartney was born on 18 June 1942 at Walton Hospital in the Walton area of Liverpool, where his mother, Mary Patricia (née Mohin), had qualified to practise as a nurse. Both of his parents were of Irish descent. McCartney has a younger brother, Peter Michael, and a younger stepsister, Ruth, born to his father Jim's second wife, Angie, during her first marriage. Paul and Michael were baptised in their mother's Catholic faith, even though their father was a former Protestant who had turned agnostic. Religion was not emphasised in the household.