Yoko Ono

Yoko Ono (born February 18, 1933) is a Japanese artist and peace activist, known for her work in avant-garde art, music and filmmaking and for her marriage to John Lennon (1969–1980). Ono brought feminism to the forefront in her music. She is also known for her philanthropic contributions to arts, peace and AIDS outreach programs. Lennon called her "the most famous unknown artist in the world."