There's one major problem with photos of Katy Perry in a floral ball gown, climbing the steps of the 2024 Met Gala — she wasn't actually there.
The singer was just one of many who appeared in AI-generated images making their way around the internet following the annual event.
Between them and a rare glimpse of what goes on inside the event itself, here's some of what you might have missed from the Met Gala.
AI images fool Katy Perry's parents
Katy Perry was not at the Met Gala despite what images posted to her Instagram might show.
Images posted to her Instagram show her sporting a full length dress with 3D butterflies and flowers finished with a mossy grass like trim followed by a secondary image featuring in a brass-look corset with a large key in the centre and a grass skirt with roses.
Both are AI generated. And they fooled her mum.
The post includes a text from Perry's mum complimenting the "gorgeous gown" before Perry corrected her telling her to "BEWARE".
Katy Perry wasn't the only one who's AI images were floating around.
Dua Lipa who was at the Met Gala certainly was not wearing a regency style corset dress.
Yet images of that exact outfit made their way around social media.
For what it's worth, this is what Dua Lipa was actually wearing.
Who didn't attend
Long-time Met Gala highlight Rihanna also fell victim to AI when she missed the 2024 event.
Often one of the last people to show up, Rihanna in the past has been congratulated for her avant-garde approach to the annual event's themes, not shying away from colours and textures while ensuring every small detail was immaculate.
According to People Magazine, the singer's absence was due to her being sick with the flu.
Another Met Gala favourite missing from this year was Gossip Girl star Blake Lively.
Her gilded glamour Versace gown stole the show in 2022 as her ode to the Statue of Liberty transformed from copper to green.
Lively also skipped the 2023 event due to recently giving birth. This year she hasn't revealed the exact reason for not attending.
But there is speculation it could be anything from trying to raise a young family to working on promotion for the upcoming release of It Ends with Us or the recently announced A Simple Favor 2.
And of course her husband fellow actor Ryan Reynolds would not dare attend alone, so he was also absent from the event.
Other notable absences include Jared Leto, who missed the event due to being on tour with his band 30 Seconds to Mars, Taylor Swift similarly was away probably due to her touring obligations in Europe and Billie Eilish skipped the show most likely in preparation for her album release next week.
We need to talk about the Kardigan
The Kardashian family are another group known for pushing the limits when it comes to the Met Gala.
But this year Kim's choice of a cardigan, or Kardigan as the Kardashians would call it, seemed to be mismatched.
Paired with a shimmering silver custom Maison Margiela by John Galliano corset and skirt, the grey cardigan draped over her shoulders looked out of place.
In a video posted by Vogue Kim explains she interpreted the theme as "imaging having the best night of your entire life with your most magical person.
"You just are in a garden, you've overslept after the best night of your life.
"I'm just like running out, my dress is falling off because it is just one of those nights and I just grabbed my boyfriend's sweater to run off to make it to where I have to be."
A rare look inside
What happens inside the Met Gala remains somewhat secret due to it largely not being recorded.
What is known is after the red carpet guests will view the exhibit before siting down for dinner and watching a musical performance.
This year that performer was Ariana Grande who shared videos on her social media of her performing a medley of her hits including Into You and Yes, And?
Tickets this year cost $US75,000 ($114,000) a head for the fundraiser event, so maintaining that exclusivity is paramount.
Sometimes selfies inside the bathrooms make their way to social media — despite a 2015 no selfie policy — including this image by Kylie Jenner that shattered the internet in 2017.
According to Vogue, the rule is in place to ensure guests are present and engaged, rather than distracted by their phones.
But other than the occasional bathroom pic, it is rare to see what happens after the red carpet.
After party action
Although the red carpet is the main attraction, for the after party the stars often continue to shine with their after party outfits.
Some stand-outs include Lana Del Rey who's Alexander McQueen entry featuring branches sprawling out underneath mesh netting already was a fan favourite.
The singer continued the mesh theme into the evening with a floral beige veil.
Janelle Monae was eyes wide open in a dress constructed from googly eyes by Area.
Charli XCX was another fan favourite for the after party attending her second Met Gala this year.
The singer kept her spiky hair from the red carpet and swapped her Alice of Bambi dress for a flared mini paired with sunglasses.
