Yoko Ono poses next to 'The Wish Tree', one of her art installations at The Bluecoat Display Centre on April, 2008 in Liverpool, England. The Wish Tree invites viewers to write their wishes on labels that are then fixed to the branches. Yoko Ono returned to perform and display her art at The Bluecoat 40 years after she first exhibited there in 1967 to celebrate the re-opening of the UK's oldest arts centre after a GBP 12.5 million refurbishment. By Christopher Furlong/Getty Images.
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