The Non-Violence Project's signature logo, a gun with a knotted barrel, was created by Carl Fredrik Reutersward as a symbol of peace after The Beatles legend, John Lennon was gunned down in New York in December, 1980.
Now Yoko Ono has joined the campaign and given the Swedish artist's widely-recognised symbol her own twist.
The Japanese artist says, "While creating my interpretation of the knotted gun symbol, I thought back to (Lennon song) Imagine and the words 'living as one', as both John and I were devoted to the idea that we can work together to achieve world peace and eliminate the violence and the suffering in this world."
"As I have often said, 'A dream we dream alone is just a dream - a dream we dream together is reality."
Yoko Ono's artwork was unveiled as part of the Knot-Violence Exhibition Tour, which features inspired sculptures interpreted by celebrities and youths around the world. The exhibition will begin in Mexico, with stops in Brazil, the U.S., the U.K., Italy, South Africa, China and Sweden.