Sir Paul McCartney has revealed the secret to his happy marriage - serenading his wife down the phone.
"In our early days she was in New York and I was in East Sussex I would take my youngest daughter to school, come back and have about three hours until she got up because of the time difference.
"I got in the habit of writing a song and then ringing her up and saying, 'Do you fancy hearing it?'
"It became a routine. I gave her the first performance of my new album, getting out my Dictaphone and making the demos at the same time. It was great fun," he said.
Asked if she approved of his songs, he joked: "She wasn't going to say that she didn't like them, was she?"
Macca, who is celebrating his second wedding anniversary with Nancy, wrote some of songs on his latest album, called New, in honour of his third wife, saying "s he was a great motivation and inspiration".
The music star has been in the US this week, where he performed at a New York City high school, before surprising fans with an impromptu concert in Times Square.
Sir Paul announced the concert on Twitter and then arrived by taxi at the "Crossroads of the World" an hour later. Despite the short notice, thousands of fans flocked to the busy midtown-Manhattan intersection for the lunchtime concert.
The 71-year-old rocker sang four songs from his latest album from a trailer parked on West 46th Street and Broadway. He joked: "Let's do this the same time tomorrow."