The Icelandic performance artist got in a (presumably good-natured) dig in at Yoko Ono, as a participant in Ono?s art exhibition at the Reykjavik Art Museum in Iceland, thanks to a bit from a classic episode of ?The Simpsons.? Also Read: Yoko Ono Posts Photo of John Lennon's Bloody Glasses in Plea to End Gun Violence ?A single plum, floating in perfume, served in a man?s hat? on display at Yoko Ono?s Reykjavik Art Museum exhibitionhttps://t.co/FvifKWRrhp pic.concours-twitter.htm">twitter.