Last night, Kids See Ghosts (the collaborative project of Kanye West and Kid Cudi) made their live debut at Camp Flog Gnaw Carnival 2018. The performance featured Ye and Cudi rapping from a giant glass box suspended in the air. Today on her Instagram Story, Lorde has called out Kids See Ghosts for “stealing” the stage design from her. She shared photos from her shows, as well as KSG’s, and wrote, “I’m proud of the work I do, and it’s flattering when other artists feel inspired by it, to the extent that they choose to try it on themselves. But don’t steal—not from women or anyone else—not in 2018 or ever.”

Find screenshots from Lorde’s Instagram Story below. When contacted by Pitchfork, representatives for Lorde offered no further comment. Pitchfork has reached out to representatives for Kanye West and Kid Cudi.

In subsequent posts to Instagram, set designer Es Devlin—who previously collaborated with Kanye on sets for the Yeezus and Watch the Throne tours, and designed Lorde’s Coachella set—uploaded a set that she created for an edition of the Georges Bizet opera Carmen. The opera was put on by the English National Opera in 2007. The set bears distinct similarities to the one employed by Kids See Ghosts at Flog Gnaw. Devlin has since confirmed she did not design the KSG set and gave New York Times journalist Joe Coscarelli the following statement:

I admire both and see no imitation at work here. I think the more interesting point is that both artists, responding to our disjointed times, are being drawn to this gesture of the fragile floating room: the world un-moored from gravity, where the rules of civilisation are identity as we have known them may soon no longer apply.

The Times reports that the Kids See Ghosts set was designed by Trask House, the company that previously designed his Saint Pablo floating tour stage. Trask House owner John McGuire told the Times that Lorde “wasn’t the first person to use a floating glass box, she won’t be the last. She doesn’t own it, her designer didn’t invent it,” and went on, “Cubes and floating aren’t new to Kanye West, stage design or architecture. A quick google of floating glass box brings up many instances of suspended glass cubes.”

This article was originally published on Monday, November 12 at 4:54 p.m. Eastern. It was last updated on November 13 at 2:39 p.m. Eastern.