'Hey Jude' (1968) is one of the Beatles’ most enduring anthems. Paul McCartney wrote it originally for John Lennon's young son (calling him 'Jude') as a way to comfort him through his parents' divorce. At over 7 minutes long, it was unusually lengthy for a pop single, yet it topped charts worldwide for weeks, becoming one of the band's best-selling records. The song builds to an unforgettable singalong chorus (‘na-na-na na’), giving listeners a communal feel-good moment. With its encouraging lyrics ('take a sad song and make it better') and grand orchestration, 'Hey Jude' has been hailed as a timeless classic of rock music.