NEW YORK (AP) — No, Katy Perry and Rihanna didn’t attend the Met Gala this year. But that didn’t stop AI-generated images from tricking some fans into thinking the stars made appearances on the steps of fashion’s biggest night.

Deepfake images depicting a handful of big names at the Metropolitan Museum of Art’s annual fundraiser quickly spread online Monday and early Tuesday.

Some eagle-eyed social media users spotted discrepancies — and platforms themselves, such as X’s Community Notes, soon noted that the images were likely created using artificial intelligence. One clue that a viral picture of Perry in a flower-covered gown, for example, was bogus is that the carpeting on the stairs matched that from the 2018 event, not this year’s green-tinged fabric lined with live foliage.

Still, others were fooled — including Perry’s own mother. Hours after at least two AI-generated images of the singer began swirling online, Perry reposted them to her Instagram, accompanied by a screenshot of a text that appeared to be from her mom complimenting her on what she thought was a real Met Gala appearance.