John Lennon's widow Yoko Ono unveiled a tower of light in Iceland on Tuesday (09Oct07), a tribute to mark what would have been the late beatle's 67th birthday. The Imagine Peace Tower in Videy island, near Reykjavik, will shine each year between his date of birth and the anniversary of his death on 8 December. Lennon was assassinated outside his New York apartment in 1980.