The Beatles were an English rock band, formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential act of the rock era. Rooted in skiffle, beat, and 1950s rock and roll, the Beatles later experimented with several musical styles, ranging from pop ballads and Indian music to psychedelia and hard rock, often incorporating classical elements and unconventional recording techniques in innovative ways. In the early 1960s, their enormous popularity first emerged as "Beatlemania", but as the group's music grew in sophistication, led by primary songwriters Lennon and McCartney, they came to be perceived as an embodiment of the ideals shared by the counterculture of the 1960s.
A self-taught musician, McCartney is proficient on bass, guitar, keyboards, and drums. He is known for his melodic approach to bass-playing (mainly playing with a plectrum), his versatile and wide tenor vocal range (spanning over four octaves), and his eclecticism (exploring styles ranging from pre-rock and roll pop to classical and electronic). McCartney began his career as a member of the Quarreymen in 1957, which evolved into the Beatles in 1960.