"She Loves You" is a song written by John Lennon and Paul McCartney and recorded by English rock group the Beatles for release as a single in 1963. The single set and surpassed several sales records in the United Kingdom charts, and set a record in the United States as one of the five Beatles songs that held the top five positions in the charts simultaneously, on 4 April 1964. It is their best-selling single and the best selling single of the 1960s in the United Kingdom.

Lennon and McCartney started composing "She Loves You" on 26 June 1963 after a concert at the Majestic Ballroom in Newcastle upon Tyne during their tour with Roy Orbison and Gerry and the Pacemakers. They began writing the song on the tour bus, and continued later that night at their hotel in Newcastle eventually completing it the following day at McCartney's family home in Forthlin Road, Liverpool.

In 2000, McCartney said the initial idea for the song began with Bobby Rydell's hit "Forget Him" with its call and response pattern, and that "as often happens, you think of one song when you write another ... I'd planned an 'answering song' where a couple of us would sing 'she loves you' and the other ones would answer 'yeah yeah'. We decided that was a crummy idea but at least we then had the idea of a song called 'She Loves You'. So we sat in the hotel bedroom for a few hours and wrote it – John and I, sitting on twin beds with guitars."

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