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Yoko Ono and Sean Lennon have interviewed each other for an American oral history project.
The National Day Of Listening urges people to take time the day after Thanksgiving to record conversations between them and their friends and loved ones.
John Lennon's wife and son took part in the campaign this year and their conversation, in which they attempt to find similarities between their childhoods, will be broadcast on US TV.
Former President George W. Bush helped jump-start the Day of Listening in 2008 before leaving the White House by sitting down for an interview with his sister, Dorothy Walker Bush Koch.
Since 2003, StoryCorps has collected more than 30,000 interviews across the country. The recordings are archived at the Library of Congress.
