Rooftop Concert, New York City - 2009

Paul McCartney played a surprise mini-concert for thousands of New Yorkers in midtown Manhattan from the top of the marquee of the Ed Sullivan Theater, where he was taping a performance for Late Show with David Letterman. It the first time McCartney has appeared on the talk show. News of the event spread via Twitter and word of mouth, and nearby street corners were closed off to accommodate fans for the 5:30 p.m. set.  It recalled the Beatles' famed Savile Row rooftop gig, when the Fab Four played atop the  building that housed Apple studios, while recording and filming the “Let It Be” sessions.

Thousands of New Yorkers stopped in the street to watch the mini-concert, which included Coming Up, Band On The Run, Let Me Roll It, Helter Skelter, and Back in the USSR.

The Beatles made their US television debut on the Ed Sullivan Show on February 9, 1964, and Sir Paul told Letterman about the nerve-racking experience of waiting for the curtain to go up.

"The audience was out there and we were very new to America, loving it but a little bit scared," he said.

"I had to do Yesterday - my song - on my own, and I'd never done this, I'd always had the band with me, but they said 'You're doing Yesterday'