The Beatles are the greatest popular group of all time. Arguably the most successful entertainers of the 20th century, they contributed to music, film, literature, art, and fashion, made a continuous impact on popular culture and the lifestyle of several generations. Their songs and images carrying powerful ideas of love, peace, help, and imagination evoked creativity and liberation that outperformed the rusty Soviet propaganda and contributed to breaking walls in the minds of millions, thus making impact on human history. The Beatles were an English rock band formed in Liverpool in 1960 and one of the most commercially successful and critically acclaimed acts in the history of popular music. The group's best-known lineup consisted of John Lennon (rhythm guitar, vocals), Paul McCartney (bass guitar, vocals),George Harrison (lead guitar, vocals) and Ringo Starr (drums, vocals). Their enormous popularity first emerged as "Beatlemania"; as their songwriting grew in sophistication, by the late 1960s they came to be perceived by many fans and cultural observers as an embodiment of the ideals shared by the era's sociocultural revolutions. As a five-piece line-up of Lennon, McCartney and Harrison on guitar and vocals, with Stuart Sutcliffe (bass) and Pete Best (drums), the band built their reputation playing clubs in Liverpool and Hamburg over a three-year period from 1960. Sutcliffe left the group in 1961, and Best was replaced by Starr the following year. Moulded into a professional act by manager Brian Epstein, their musical potential was enhanced by the creativity of producer George Martin. They gained popularity in the United Kingdom after their first single, "Love Me Do". In March 1957 John Lennon, formed a skiffle group with several friends from Quarry Bank school. They were called The Quarrymen. Paul McCartney joined as a guitarist shortly. In February 1958 McCartney invited his friend George Harrison to watch the group. Lennon was impressed by his