Yoko Ono exhibition debuts at London's Tate Modern

The Tate Modern in London will open a new exhibit on Friday (February 15) showcasing the works of artist and activist, Yoko Ono, over her 70-year career. "There's a great humor in Ono's work, as well as very serious messaging and there's a generosity to it," said Juliet Bingham, the Tate's Curator of International Art.