SIR PAUL MCCARTNEY took a trip down memory lane when he performed outside the building where the Beatles made their US debut.
The singer staged an outdoor concert at New York's at the famed Ed Sullivan Theater yesterday where he was appearing on the Late Show With David Letterman.
And not only was it the first time Sir Paul has appeared on the show, but it was the venue where the Beatles kick-started their American success.
In 1964, the Fab Four were invited to perform on Ed Sullivan's music show on three consecutive Sundays, and the slots led them to land their first number one stateside with I Want To Hold Your Hand.
McCartney told Letterman that the intimate gig had brought back happy memories.
He said: "You know, I was just thinking today when we first came here, we'd never seen this kind of thing. TV studios in England were kind of all on one floor, the makeup was next door to this.
"But here, it's like an apartment block - you know, you go to makeup and you take an elevator five floors, then you go to wardrobe and you come here. But, yeah, just the memory of being here is great. It was kind of scary the first time."