Japanese artist and widow of musician John Lennon, Yoko Ono, walks inside one of her installations during the opening of her retrospective exhibition

John Lennon and his wife Yoko Ono leave a brief deportation hearing, March 16, 1972, in New York at the offices of the Department of Immigration and Naturalization. They say they want to stay in the United States, but their visitors' visas have expired. (AP Photo/Tony Camerano)

John Lennon and Yoko Ono, attending a MS magazine boat party in 1974.

Yoko Ono arrives for a reception in honor of Britain's Prince Charles and Camilla, Duchess of Cornwall at the Modern Art Museum in New York Tuesday, Nov. 1, 2005. (AP Photo/Gregory Bull)

Japan's artist and widow of Beatle John Lennon, Yoko Ono, poses after the opening of her retrospective exhibition

Japan's artist and widow of Beatle John Lennon, Yoko Ono, poses after the opening of her retrospective exhibition

Yoko Ono and her son Sean Lennon arrive to the opening of

Yoko Ono, widow of slain Beatle John Lennon performs at the Chatelet theater in Paris, Saturday Feb.18, 2006. The performance dubbed

WORLD EXCLUSIVE : Collection Traverso 65 years of the festival of Cannes 1971 Cannes Yoko Ono and John Lennon attend at the film festival of Cannes for "Apotheoses " ? Collection Traverso for Allpix Press

WORLD EXCLUSIVE : Collection Traverso 65 years of the festival of Cannes 1971 Cannes Yoko Ono and John Lennon attend at the film festival of Cannes for "Apotheoses " ? Collection Traverso for Allpix Press

HM QUEEN AND YOKO ONO AT THE OPENING OF THE JOHN LENNON AIRPORT IN LIVERPOOL. PHOTO IAN JONES

HM QUEEN AND YOKO ONO AT THE OPENING OF THE JOHN LENNON AIRPORT IN LIVERPOOL. PHOTO IAN JONES