Though there was nothing avant-garde about their look, the Weeknd and Selena Gomez still triumphed as couple of the night. Gomez stayed committed to her relationship with Coach by wearing a custom gown and handbag by the brand's creative director Stuart Vevers. The silk-chiffon, lingerie-style frock was hand-sewn with prairie-floral embroidery similar to those in the brand's pre-fall collection. The Weeknd held his own in an impeccable Valentino suit, which he paired with a vintage Cartier brooch, cufflinks and a Panthère ring that officially make him one of the best bejweled of the evening.
Pharrell Williams & Helen Lasichanh in Comme des Garçons
Anyone who actually wears the designer being honored for the night or does an original take on the theme (as Rihanna did in 2015 by actually wearing a gown by a Chinese designer, Guo Pei) automatically scores more sartorial points. But Pharrell Williams's wife Helen Lasichanh scores extra points for not only wearing one of Rei Kawakubo's designs (both of them wore CDG), but also wearing a particularly outrageous shape that requires forfeiting the use of your arms for the evening.
Riley Keough in Louis Vuitton
Great style certainly runs in Riley Keough's blood, but the singer and actress has been amping things up lately, and her red and black sequined gown from Louis Vuitton's fall 2017 collection is further proof. Keough kept hair and makeup simple and sleek to show off the gown, which features chain detailing hanging from the shoulder across the bodice.
As one of the night's co-hosts, Perry showed extreme commitment to the avant-garde theme. Her veiled red tulle gown from Maison Margiela was perhaps even more out-there than any of the Comme des Garçons looks of the night. And though it was difficult to see any makeup, the singer scored major beauty points with her nail art.
Mandy Moore in Michael Kors
Mandy Moore has been working with stylist Karla Welch's protégé Erica Cloud and the pairing seems to be working out well. The singer and actress chose a cashmere Michael Kors gown that gave off an elegant avant-garde vibe, with it's ruffled accents and only one glove. Moore committed to the look with a white-tipped bun by hairstylist Ashley Streicher and asymmetric silver jewels.
Frances Bean Cobain & Courtney Love in Marc Jacobs
Courtney Love and daughter Frances Bean Cobain attended the gala together, with both mother and daughter wearing sheer, embellished gowns by Love's friend Marc Jacobs. The Old Hollywood look might be a world away from Kawakubo's designs, but for a family that's been through a lot, it was an elegant and touching moment.
Solange Knowles in Thom Browne
As far as Met Gala history goes, the singer might be best known for the drama that ensued at the 2014 event, but nevertheless, Knowles continues to choose on-theme looks that are well thought out, including this year's tailored puffer overcoat with a train by Thom Browned, which she paired with a patent-leather Mark Cross mini bag.
Zoe Kravitz in Oscar de la Renta
At 28, Zoe Kravitz is a true millennial, and she showed it last night by donning a caped gown in black and millennial pink—made all the more interesting by the fact that it was designed by not-so-millennial Oscar de la Renta. The feminine look also has a hint of the same retro feminity that Kravitz displayed in her Audrey Hepburn costume on the season finale of "Big Little Lies."
Wiz Khalifa in Thom Browne
The rapper took the if-it-ain't-broke-don't-fix-it approach last night by wearing a black and white three-piece suit by Thom Browne, similar to the one he wore to the 2016 Grammys. Which is fine, because he's pretty much the only person who can pull off this silhouette with any panache.
Mary J. Blige in La Perla Haute Couture
The singer wore a hand-sculpted latex gown with a built-in bra and corset by lingerie brand La Perla's new couture line and killed it, Angelina leg and all. Blige, who is no stranger to big, bold jewelry looks, completed her ensemble with oversized diamond earrings and a cuff from Lorraine Schwartz, along with Saint Laurent accessories.
Rita Ora in Tom Ford
Rita Ora's red satin and tulle Tom Ford gown hit the avant-garde mark with its oversized, almost-ridiculous shoulder bow.
Zendaya in Dolce & Gabbana Alta Moda
Ever the chameleon, the singer wore a gigantic gown from Dolce & Gabbana's couture line, which featured a red-carpet-worthy train and a quirky floral-and-parrot print.
Paris Jackson in Calvin Klein By Appointment
The budding model and It girl looked sophisticated in a vintage-looking satin gown by the brand's custom line, By Appointment, which its new creative director Raf Simons just debuted.
Migos in Versace
With their debut song living on in infamy, it's hard to imagine the hip-hop trio wearing anything but Versace. The rappers made it look sleek with black shirts (or no shirt), shades, sleek shoes and loads of diamond chains.
While it's still unclear who designed Diddy's ensemble, the mogul took to Instagram to explain, "My outfit pays homage to #CommeDesGarcons as far as the fearlessness and getting out of the box!! That's what we represent!" He also got outside the box by laying down on the red carpet.