Rooftop Concert, New York City -
Paul McCartney played a surprise mini-
Thousands of New Yorkers stopped in the street to watch the mini-
The Beatles made their US television debut on the Ed Sullivan Show on February 9, 1964, and Sir Paul told Letterman about the nerve-
"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 -