Yoko Ono, 'Half a Room'

Yoko Ono:Music of the Mind (Feb 15-Sep 1) is the largest UK exhibition celebrating the ground-breaking and influential work of the Japanese-born artist and activist. Spanning seven decades from the mid-1950s to the present day, including her years in London, where she met her husband and long-time collaborator John Lennon, the exhibition traces the development of her work and its impact on contemporary culture through over 200 works, including instruction pieces and scores, installations, films, music and photography, revealing a radical approach to language, art and participation. Works includes Cut Piece (1964), where people were invited to cut off her clothing, and the banned Film No.4 (Bottoms) (1966-67), which she created as a ‘petition for peace’.