…But it was all in good fun!
After seeing the Roar-ing singer in the same Emanuel Ungaro leopard print dress she wore to the MET Gala, Coco took to Instagram and posted a (seemingly harmless) video joking about the wardrobe rewind:
"On the @MTV #Vmas red carpet where I spy #KatyPerry wearing my #MetGala #Ungaro gown!!"
Even though Coco was just kidding, KatyCats took offense and started hissing at the supermodel, which prompted her to set the record straight on Twitter.
The Canadian beauty tweeted:
— Coco Rocha (@cocorocha) August 28, 2013
And there you have it!
[Image via Andres Otero/WENN.]