LONDON — Before there was John and Yoko — and after — there was just Yoko Ono ... s art was interactive long before that was all the rage. In her landmark 1964 performance “Cut Piece ...

Only recently given stewardship over his late father’s work, Sean Ono Lennon is on a remarkable ... box is modeled after one of his mother’s art pieces and filled with art reproductions ...

Ono’s art was interactive long before that was all the rage. In her landmark 1964 performance “Cut Piece,” she gave gallery visitors scissors and invited them to snip away at her clothes.