As well as being one of the world's most fabled widows, Yoko Ono is one of its wealthiest artists. Yet even stranger for one so famous is that her art is actually little known. A participant in New York's underground scene of the early 1960's and one of the very first members of the international Fluxus art movement - a loosely knit group of musicians, artists, poets and film makers who tried to blur the boundaries between art and life, and in some ways were the first hippies - Yoko Ono became the personification of way out, experimental art after she met John Lennon in 1966.
