2012 Olympics: John Lennon's "Imagine" all over London

Footage of John Lennon singing "Imagine" was shown on the big screen as a choir from his home city of Liverpool sang onstage during Sunday's closing ceremony for the London 2012 Olympics.

The remastered video came straight from the archives of Lennon's widow Yoko Ono, who made sure that the former Beatle was not forgotten in all the Olympic hoopla.

Ono's "Imagine Peace," a public art installation based on Lennon's legacy, made its debut at Selfridges department store in London on June 21 and will remain in London through the final day of the Paralympic Games on Sept. 9.

The anti-violence initiative has toured the world, stopping in such diverse cities as Reykjavik, Tokyo and Las Vegas.

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