 In 1999, two performance artists, Yuan Cai and Jian Jun Xi, jumped on Tracey Emin's installation "My Bed", a work consisting of the artist's own unmade bed, at the Tate Gallery's Turner Prize, in an unauthorised art intervention.Cai had written, among other things, the words "Anti Stuckism" on his bare back.Fiachra Gibbons of "The Guardian" wrote (in 1999) that the event "will go down in art history as the defining moment of the new and previously unheard of Anti-Stuckist Movement."