Paul McCartney performs “I Want to Hold Your Hand” at Taylor Swift and Travis Kelce's wedding reception at Madison Square Garden, marking the first public rendition since 1964.About 1,000 guests attend, with Stevie Nicks also performing and Adam Sandler officiating, and celebrities including Gigi Hadid, Ed Sheeran and Selena Gomez present.McCartney, 84, reflects on fame and his long link to Swift, whose friendship with McCartney dates to 2020, while the 1963 single has sold more than 12M copies worldwide.