Why, yes. I do remember that scene from Give My Regards to Broad Street.

Well, if you’re one of the sixteen people who saw Macca’s 1984 film Give My Regards to Broad Street, you’ll remember that, in one scene, when he contemplates the consequences of the master tapes for his latest album being stolen, he’s playing “Yesterday” on the streets on what appears to be the guitar he played at his first meeting with John Lennon. This scene was actually not faked; he really put on a disguise and performed a song on the streets of London, and he really recieved money that he did devote to a charity called The Mission to Seafarers.

And, 20 years later, Macca did another impromtu performance, this time on a New Orleand Street car. Apparently, he travelled with his new wife Nancy Shevell when he just burst into song, a medley of some of the Beatles’ biggest hits. Everyone ignored him.

One passenger said: ”This guy got on the street car and started singing Beatles songs. Everyone was just ignoring him really because there are a lot of buskers in this town. Then we realised it was Sir Paul McCartney and we were just in shock. He started singing along with the whole carriage and taking pictures. It was a once-in-a-lifetime experience. One of the best days of my life.”

The only song reported to have been performed in full is “A Hard Day’s Night.”

When Paul McCartney did this 20 years ago, he said, “They just made me up and dropped me off. [...] So I was standin’ there plunkin’ chords, doing this silly version of the song, and no one noticed it was me. No one wants to look a busker (street singer) in the eye, of course, ‘cus then they get his life story. So they’d toss coins and I’d be going ‘Yesterday, all my troubles – thank you, sir – seemed so far away.’ [...] After we did it, I made sure the money was donated to the Seaman’s Mission.”

Meanwhile, a studio recording of the song that Sir Paul recorded with the surviving members of Nirvana, “Cut Me Some Slack,” has been revealed.

http://www.youtube.com/watch?v=jBd9330h9kI&feature=player_embedded

and here’s an artist’s conception of what happened:

http://www.youtube.com/watch?v=O4zT7VhpDcQ