McCartney and his wife Nancy Shevell were in New Orleans attending the Super Bowl this past weekend. While in the city, apparently Paul was happy to take public transportation and reportedly left fellow streetcar riders amazed.

McCartney even decided to give his vocal chords a stretch while journeying to his next destination.

“This guy got on the street car and started singing Beatles songs,” local resident Robert Senft told British newspaper The Mirror. "Everyone was just ignoring him because there's a lot of buskers in this town. He started to sing directly to my friend Evelyn. We realized it was Sir Paul McCartney and were in shock.”

“For a few minutes the entire streetcar was in musical harmony. He started singing with the whole carriage and taking pictures,” Robert explained. “It was a once in a lifetime experience.”