The Beatles were an English rock band from Liverpool comprising John Lennon, Paul McCartney, George Harrison, and Ringo Starr, who evolved from skiffle and rock ‘n’ roll roots into pioneering studio artists on albums such as Rubber Soul, Revolver, and Sgt. Pepper’s Lonely Hearts Club Band. Working with producer George Martin, they incorporated classical, Indian, and psychedelic influences into popular music.

The Beatles are the best-selling music act in history, with an estimated 600 million units sold worldwide, and are credited with transforming the album into an artistic format and shaping virtually all subsequent popular music.

Sources:

• https://en.wikipedia.org/wiki/The_Beatles