The Beatles were a pop and rock group from Liverpool, England formed in 1960. Primarily consisting of John Lennon (rhythm guitar, vocals), Paul McCartney (bass guitar, vocals), George Harrison (lead guitar, vocals) and Ringo Starr (drums, vocals) throughout their career, The Beatles are recognised for leading the mid-1960s musical "British Invasion" into the United States. Although their initial musical style was rooted in 1950s rock and roll and homegrown skiffle, the group explored genres ranging from Tin Pan Alley to psychedelic rock. Their clothes, styles, and statements made them trend-setters, while their growing social awareness saw their influence extend into the social and cultural revolutions of the 1960s. After the band broke up in 1970, all four members embarked upon solo careers.

The Beatles are one of the most commercially successful and critically acclaimed bands in the history of popular music and the best-selling musical group in history.http://uktv.co.uk/history/gallery/aid/601378/multipageid/5823 The Beatles' First Recording In the United Kingdom, The Beatles released more than 40 different singles, albums, and EPs that reached number one, earning more number one albums (15) than any other group in UK chart history.http://www.licensing.biz/brand-profiles/16/The-Beatles The Beatles This commercial success was repeated in many other countries; their record company, EMI, estimated that by 1985 they had sold over one billion records worldwide. According to the Recording Industry Association of America, The Beatles have sold more albums in the United States than any other band. In 2004, Rolling Stone magazine ranked The Beatles number one on its list of 100 Greatest Artists of All Time. According to that same magazine, The Beatles' innovative music and cultural impact helped define the 1960s, and their influence on pop culture is still evident today.

The Rolling Stones are an English band whose music was initially based on rhythm and blues and rock & roll. Formed in London and having their first success in the UK, they subsequently became popular in the US during the "British Invasion" in the early 1960s.

The band formed in 1962 when original leader Brian Jones and pianist Ian Stewart were joined by singer Mick Jagger as lead vocals and guitarist Keith Richards, whose songwriting partnership later contributed to their taking the leadership role in the group. Bassist Bill Wyman and drummer Charlie Watts completed the early lineup. Ian Stewart was removed from the official lineup in 1963 but continued to work with the band as road manager and keyboardist until his death in 1985.

The band's early recordings were mainly covers of American blues and R&B songs. Their 1965 single "(I Can't Get No) Satisfaction" established The Rolling Stones as a premier rock and roll act.[http://wm04.allmusic.com/cg/amg.dll?p=amg&token=&sql=33:wbfuxx9sldje "(I Can't Get No) Satisfaction"]allmusic, accessed 14 December 2007 Starting with their 1966 album Aftermath, the songs of Jagger and Richards, aided by the instrumental experimentation of Jones, expanded an always present stylistic flexibility. Jones died in 1969 shortly after being fired from the band and was replaced by Mick Taylor. Taylor recorded five albums with The Rolling Stones before quitting in 1974. Former Faces guitarist Ronnie Wood stepped in and has been with the band ever since. Wyman left the Rolling Stones in 1993; bassist Darryl Jones, who is not an official band member, has worked with the group since 1994.

The Rolling Stones have released 22 studio albums in the UK (24 in the US), eight concert albums (nine in the US) and numerous compilations; they have had 32 UK & US top-10 singles, 43 UK & US top-10 albums from 1964 and 2008 and have sold more than 200 million albums worldwide."Everything is turning to gold", Record sales of The Rolling Stones. 1971's Sticky Fingers began a string of eight consecutive studio albums at number one in the United States. In 1989 The Rolling Stones were inducted into the American Rock and Roll Hall of Fame, and in 2004 they were ranked number 4 in Rolling Stone magazine's 100 Greatest Artists of All Time. They are also ranked as the number 2 artists of all time on Acclaimedmusic.net. Their latest studio album, A Bigger Bang, was released in 2005 and followed by the highest-grossing tour in history, which lasted into late summer 2007. During the 1969 American tour, tour manager Sam Cutler introduced them as "The Greatest Rock and Roll Band in the World", a title which has remained. Their image of unkempt and surly youth is one that many musicians still emulate.