The outfits are intricate and incredibly accurate.
So at first glance this image looks like a recording of the royal wedding.
In fact, it was part of a TV-renactment on US channel NBC.
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Rather than don ghoulish fancy dress, the team of the Today show recreated the pomp of the Duke and Duchess of Cambridge's nuptials.
Dressed as Pippa Middleton, the Queen, Victoria Beckham and the famous couple themselves, they had clearly put a lot of thought into the scene.
Halloween is a serious business in the States, and countless celebs celebrated with weird and wonderful outfits.
But compared to this effort, no one else stood a ghost of a chance.
Watch: Prince William takes George to meet his sister
It's a little princess!