The song first charted in the United Kingdom on May 29, 1963.Bobby Rydell - Full Official Chart History, Official Charts Company. Accessed October 24, 2016. It received significant airplay, began to rise in the charts and was noticed by Paul McCartney. In 2000, McCartney said the initial idea for "She Loves You" came from a Bobby Rydell hit that was popular at the time (mid-1963).The Beatles (2000). The Beatles Anthology. London: Cassell & Co., page 96 Lennon and McCartney started composing "She Loves You" on June 26, 1963 (about four weeks after the release of "Forget Him" in the UK). "She Loves You" was completed the following day.
