LONDON (AP) 鈥 Before there was John and Yoko 鈥 and after 鈥 there was just Yoko Ono.

The Japanese-American artist became a global celebrity through her marriage to , her partner for more than a decade , as well as her collaborator on peace-protest 鈥渂ed-ins鈥 and in the Plastic Ono Band.

Yet that period forms just a small part of an exhibition opening this week at the Tate Modern gallery in London. One of the largest shows of Ono鈥檚 work ever mounted, it includes seven decades of work by the artist, who turns 91 on Sunday.

More than 200 artworks 鈥 including film, music, soundscapes, paintings, drawings and sculptures 鈥 trace Ono鈥檚 career from the 1950s and 1960s New York, where her apartment became a hangout for bohemian artists, to Japan, where she brought together artists from east and west.

Then it鈥檚 on to London, where Ono met the movers and shakers of Swinging Sixties counterculture 鈥 including, fatefully, Lennon, who came to see her show at a London gallery.

鈥淚t was really important to give that kind of texture and set the foundation of how she developed her practice before she came to London 鈥 before the moment of meeting John Lennon,鈥 co-curator Juliet Bingham said on Tuesday at a preview of the exhibition. 鈥淪he was really at the forefront of conceptual art.鈥

Ono鈥檚 art was interactive long before that was all the rage.

In her landmark 1964 performance 鈥淐ut Piece,鈥 she gave gallery visitors scissors and invited them to snip away at her clothes.

In this show, visitors can stomp on 鈥淲ork to be Stepped On,鈥 hammer a nail into canvas, trace their shadows on a wall, shake hands through a hole in 鈥淧ainting to Shake Hands鈥 and play chess with a set where all the pieces are white 鈥 鈥減laying for as long as you remember what your pieces are,鈥 Bingham said.

鈥淭hat very much is emblematic of her ongoing campaign for peace,鈥 the curator added. 鈥淚t becomes about participation and something other than winning.鈥

Visitors also can ponder Ono鈥檚 many 鈥渋nstructions鈥 pieces, which she began creating in the 1950s. Gallery walls are lined with bits of paper suggesting 鈥淟isten to the sound of the earth turning,鈥 鈥淲atch the sun until it becomes square鈥 and other enigmatic prompts.

It鈥檚 occasionally hard to know whether Ono is being intentionally funny with instructions like 鈥淚magine letting a goldfish swim across the sky 鈥 Drink a liter of water.鈥

Other pieces show a cheeky humor 鈥 literally so in 鈥淔ilm No. 4 (Bottoms),鈥 a montage of 200 posteriors that was banned in 1960s Britain. It鈥檚 shown alongside photos of Ono protesting outside the censor board with a bouquet of flowers and a poster adorned with bums.

For an exhibition at New York鈥檚 Museum of Modern Art in the 1970s, Ono falsely claimed to have released hundreds of flies soaked in perfume for gallery visitors to find.

Ono鈥檚 relationship with Lennon took her peace message and avant-garde art to an audience of millions, but also cast her in the unwanted role 鈥 to some fans 鈥 of the woman who broke up The Beatles.

The exhibition includes the couple鈥檚 鈥淲ar is Over鈥 billboard and footage of their , as well as an earlier work in which they sent world leaders pairs of acorns, asking them to plant 鈥渙ak trees for world peace.鈥 Politicians鈥 terse typed replies are displayed alongside.

Despite the often sexist and racist barbs directed her way, Bingham says Ono flourished creatively alongside Lennon.

鈥淪he talks about them both crossing over into each other鈥檚 fields 鈥 from avant-garde left field, where she was coming from in New York and Japan, and from left-field rock 鈥榥鈥 roll,鈥 Bingham said. 鈥淭hey inspired and contributed to each other鈥檚 lives in a really positive and fruitful way.鈥

In the more than four decades since Lennon鈥檚 death, Ono has continued to create works steeped in humanism and cries for peace. The Tate show includes 鈥淲ish Trees,鈥 with branches where visitors can hang messages of hope.

One of the final rooms is devoted to 鈥淎dd Color (Refugee Boat),鈥 a wooden boat painted white in a white-walled room. Markers are supplied for visitors to add words or images. Several have already written: 鈥淎ll you need is love.鈥

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鈥淵oko Ono: Music of the Mind鈥 opens Thursday and runs through Sept. 1 at Tate Modern in London.

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