Yoko Ono has long been thought of as a divisive figure, the butt of countless jokes about breaking up the greatest band of all time.
The irony, of course, is that all she has ever tried to preach through her art and her music is unity and love.
Last year, one of the most refreshing and enjoyable of London's summer of excellent art shows belonged to former wife of John Lennon, whose exhibition 'To The Light' gain positive reviews, not least of all on this site where it was given four stars out of five.
Today, on her 80th birthday, we look back on photographs from her remarkable life so far and round up some of the best things she's ever said about art, life and love.
Happy birthday Yoko!