The invitation for this year's Met Gala said the theme was China.
Enter Rihanna, who took to the red carpet in a fur-trimmed yellow cape with a train so long it needed three people to help carry it.
The singer had the grand staircase at New York's Metropolitan Museum of Art all to herself after turning up late.
The ensemble was designed by Chinese designer Guo Pei.
Beyonce was also late and wore a peekaboo custom Givenchy Haute Couture by Riccardo Tisci covered in multicoloured crystals and stones.
Tickets cost $25,000 (£16,500) each with the cash going towards funding Vogue editor Anna Wintour's costume museum.
Kim Kardashian most certainly embraced the evening's vibe - in a revealing, low-cut gown with an East motif done by Peter Dundas for Roberto Cavalli, the designer's first for the house.
Her little sister Kendall Jenner opted for Calvin Klein, sparkling in green with sexy laces on each side.
Sarah Jessica Parker, who made a splash on the red carpet last year in a custom Oscar de la Renta, donned a fiery head piece with long side tassels that towered high above her black gown.
And then there's this dress from Solange Knowles...
And this one from Zendaya...
Image caption Zendaya Coleman was there in a Fausto Puglisi dress
British model and singer Karen Elson (Jack White's ex-wife) even wore a crown. It's Dolce &Gabbana don't you know.
Jennifer Lopez wore red Versace with side panels that left little to the imagination and held hands with Donatella Versace on the red carpet.
Anne Hathaway shimmered in a sleek hooded body-skimmer from Ralph Lauren in keeping with the theme.
Maybe she was also channelling Princess Leia on the fourth of May? You know the rest.
Diane Kruger, who tucked a flower behind one ear, wore a beaded Chanel top and sheer blush trousers.
She was there with partner Joshua Jackson.
Katie Holmes, in a temporary bob, wore a Zac Posen sparkly blue gown with cutouts at the back.
Justin Bieber showed up in a black jacket slithering with gold dragons by fashion house Balmain.
A bird of paradise adorned the bottom of former Glee actress Dianna Agron's one-shoulder Tory Burch gown.
Here's Cara Delevingne's outfit (FYI - the tattoos are fake and her outfit is courtesy of Stella McCartney) and some of the other stars who attended.
Image caption Miley Cyrus showed off a blue and green hairstyle in an Alexander Wang gown
Image caption Guess what Katy Perry was wearing?
Image caption Kate Beckinsale was wearing a custom golden Diane von Furstenberg gown
Image caption Emily Ratajkowski, Maryna Linchuk, Philip Green, Lily Donaldson, Natasha Poly, Lewis Hamilton, Bella Hadid and Hailey Baldwin
Image caption Lisa Bonet, Lenny Kravitz, Hannah Bagshawe, Eddie Redmayne, Maria Grazia Chiuri, Pierpaolo Piccioli, and Alba Rohrwacher
Image caption FKA Twigs and Robert Pattinson turned up together at the Met Gala
Image caption Jessica Chastain was in a Givenchy Haute Couture by Riccardo Tisci mermaid gown
Image caption Alicia Keys was on the red carpet with Jean Paul Gaultier
Image caption Scandal star Kerry Washington wore a pink Prada number
Image caption Elizabeth Banks was in a bright turquoise Michael Kors dress
Image caption Rosie Huntington-Whiteley wore a Versace gown
Image caption Kate Mara took time out from promoting The Fantastic Four
Image caption Naomi Campbell wore a peekaboo Burberry gown
Image caption Cristiano Ronaldo's ex Irina Shayk was there with British model Emily Ratajkowski
Image caption US model Lily Aldridge kissed her fish-shaped bag while wearing Carolina Herrera
Image caption Reese Witherspoon was dressed in a Jason Wu dress dripping with diamonds
Image caption Tom Ford, Rita Ora and Madonna were pictured together
Image caption Chloe Moretz was wearing a Coach dress with a Monique Pean bracelet and necklace
Image caption Maggie Q and fiance Dylan McDermott, both from Stalker, were there as well
Image caption Selena Gomez was in a white Vera Wang gown
Image caption Jennifer Lawrence is co-chair of this year's Met Gala and was wearing a Dior number
Image caption Newsroom star Olivia Munn was in a J Mendel number
Image caption Lady Gaga was on the red carpet with designer Alexander Wang
Image caption Keren Craig, Ellie Goulding and Georgina Chapman were on the red carpet together
Image caption OC and House star Olivia Wilde wore Prada to the event
Image caption Chloe Sevigny wore JW Anderson number with Cartier jewellery
Image caption Kate Hudson was wearing a Michael Kors dress and was holding an Edie Parker clutch
Image caption Gigi Hadid, who's going out with Cody Simpson, wore a crimson Diane von Furstenberg dress
Image caption Sofia Vergara, who was escorted by boyfriend Joe Manganiello, wore a Marchesa gown
Image caption Jennifer Connelly, who was out with husband Paul Bettany, wore a custom Louis Vuitton dress with Jessica McCormack jewellery
Image caption Australian actress Rose Byrne wore a red Calvin Klein dress
Image caption Girls actress Allison Williams was dressed in Giambattista Valli Couture
Image caption English star Rachel Weisz was in a grey Chanel number
Image caption Vanessa Hudgens wore a red H&M dress with a birdcage veil
Image caption Homeland star Claire Danes was dressed up in a Valentino number
The stars were told not to use social media. That didn't stop this lot by the looks of it...
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