The United States Postal Service has honoured singer and songwriter John Lennon as the latest addition to its Music Icons stamp series at a first-day-of-issue ceremony in New York City's Central Park.
"I know that my father would have been really thrilled to have been accepted in this way, officially, on a stamp, about official as it gets I think," said the late artist's son, Sean Lennon.
Lennon's wife Yoko Ono unveiled the stamp that featured a photo of the former Beatle taken by photographer Bob Gruen.

Yoko Ono, fourth from right, unveils the John Lennon Commemorative Forever stamp. Source: AAP
"I had so much enjoyment being with John. I'm so lucky, I feel very, very lucky. The most complaint I have is that he's not here but he's somewhere in the sky," Ms Ono said.
The photo had also appeared on the cover of his 1974 solo album, 'Walls and Bridges'.
Lennon, a rock and pop music icon, is world renowned as a founding member of the Beatles and a successful solo artist.
The Beatles still hold records for a string of hits released from 1962-1970, including 'All You Need is Love', which served as an anthem for Lennon's humanitarian endeavours.
Lennon's last studio album was released in 1980.
Lennon was posthumously inducted into the Songwriters Hall of Fame in 1987 and twice inducted into the Rock and Roll Hall of Fame as a member of the Beatles in 1988 and as a solo artist in 1994.
The English singer-songwriter was shot on December 8, 1980. He was 40-years-old.