Paul McCartney performed the Beatles classic "I Want to Hold Your Hand" at the wedding reception of Taylor Swift and Travis Kelce, marking the first time he has played the song in public since 1964.
The historic moment took place on Friday at Madison Square Garden in New York, according to a report by The Guardian.
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The song, originally released in 1963, became the Beatles' best-selling single worldwide, with over 12 million copies sold.
People magazine first reported on the performance, citing an unnamed source who said Swift's mother, Andrea, invited guests into the reception room where the stage was set up after the ceremony.
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The source added that former Fleetwood Mac vocalist Stevie Nicks also performed during the celebration.
McCartney, 84, and Swift, 36, have a long history of mutual admiration, having appeared together on the cover of Rolling Stone in 2020.
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Before the wedding, McCartney discussed the challenges of international stardom in a media interview, comparing modern pop stars' public attention to his own experiences during Beatlemania in the 1960s.