"Hey Jude" is a song by the English rock band The Beatles, written by Paul McCartney and credited to Lennon–McCartney. The ballad evolved from "Hey Jules", a song widely accepted as being written to comfort John Lennon's son, Julian, during his parents' divorce. This account is not universally accepted, though, and McCartney has even given conflicting explanations. "Hey Jude" begins with a verse-bridge structure based around McCartney's vocal performance and piano accompaniment; further instrumentation is added as the song progresses to distinguish sections. After the fourth verse, the song shifts to a fade-out coda that lasts for more than four minutes.

"Hey Jude" was released in August 1968 as the first single from The Beatles' record label Apple Records. More than seven minutes in length, "Hey Jude" was, at the time, the longest single ever to top the British charts. It also spent nine weeks as number one in the United States—the longest run at the top of the American charts for a Beatles' single, and tied the record for longest stay at number one (until the record was broken by "You Light Up My Life"). The single has sold approximately eight million copies and is frequently included on professional lists of the all-time best songs.

Sir James Paul McCartney, MBE, Hon RAM, FRCM (born 18 June 1942) is an English musician, singer-songwriter and composer. Formerly of the Beatles (1960–1970) and Wings (1971–1981), he has been described by Guinness World Records as "The Most Successful Composer and Recording Artist of All Time", with 60 gold discs and sales of over 100 million albums and 100 million singles. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles, and with Lennon formed one of the most celebrated songwriting partnerships of the 20th century. After leaving the Beatles, he began a solo career and later formed the band Wings with his first wife, Linda Eastman, and singer-songwriter Denny Laine.

According to the BBC, his Beatles song "Yesterday" has been covered by over 2,200 artists—more than any other song. Wings' 1977 release, "Mull of Kintyre", became one of the best-selling singles ever in the UK, and he is "the most successful songwriter" in UK chart history, according to Guinness. As a songwriter or co-writer, he is included on thirty-one number one titles on the Billboard Hot 100, and as of 2012 he has sold over 15.5 million RIAA certified units in the United States.

Sir Elton Hercules John, CBE (born Reginald Kenneth Dwight on 25 March 1947) is an English rock singer-songwriter, composer, pianist and occasional actor. He has worked with lyricist Bernie Taupin as his songwriter partner since 1967; they have collaborated on more than 30 albums to date.

In his four-decade career John has sold more than 250 million records, making him one of the most successful artists of all time. His single "Candle in the Wind 1997" has sold over 33 million copies worldwide, and is the best selling single in Billboard history. He has more than 50 Top 40 hits, including seven consecutive No. 1 US albums, 56 Top 40 singles, 16 Top 10, four No. 2 hits, and nine No. 1 hits. He has won six Grammy Awards, four Brit Awards, an Academy Award, a Golden Globe Award and a Tony Award. In 2004, Rolling Stone ranked him Number 49 on its list of the 100 greatest artists of all time.

John was inducted into the Rock and Roll Hall of Fame in 1994. Having been named a Commander of the Order of the British Empire in 1996, John received a knighthood from Queen Elizabeth II for "services to music and charitable services" in 1998.