'Imagine' having all that money. Yoko Ono is best known for being the widow of Beatle John Lennon, which is probably an unkind way to define her. She's worked all her life as a conceptual artist, and it was her artistic qualities that drew Lennon to her in the first place.
Ono had a keen mind for business- more so than Lennon - and took over the handling of the family's finances after they married and had a son. Her approach to this, coupled with her increasing influence on Lennon's attitude to the band, has seen her blamed by some fans for breaking up one of the world's greatest bands, although Lennon always fiercely defended her against this accusation. Following her husband's assassination, Ono's art took on a new direction heavily influenced by grief, and much like Queen Victoria she has largely only worn black - the color of mourning - since she was widowed.