For the first time in nearly 40 years, Yoko Ono is to perform one of her art "happenings" in which she invites her audience to cut off her clothing until she is naked on stage. Ono, the widow of John Lennon, first performed the conceptual work Cut Piece as a peace protest in Japan in 1964. At the age of 70, she is to repeat the protest in Paris later this month because of growing political tension in the world. During the original stunt she took to the stage in a white gown, wielding a pair of scissors. Members of...