Born in Liverpool, McCartney taught himself piano, guitar, and songwriting as a teenager, having been influenced by his father, a jazz player, and rock and roll performers such as Little Richard and Buddy Holly. He began his career when he joined Lennon's skiffle group, the Quarrymen, in 1957, which evolved into the Beatles in 1960. Sometimes called "the cute Beatle", McCartney later immersed himself in the London avant-garde scene and played a key role in incorporating experimental aesthetics into the Beatles' studio productions. Starting with the 1967 album ''Sgt. Pepper's Lonely Hearts Club Band'', he gradually became the band's ''de facto'' leader, providing creative impetus for most of their music and film projects. Many of his Beatles songs, including "And I Love Her", "Yesterday", "Eleanor Rigby", and "Blackbird", rank among the most covered songs in history. Although primarily a bassist with the Beatles, he played a number of other instruments, including keyboards, guitars, and drums, on various songs.
