
being the night’s biggest risk taker in a bright-yellow ball gown by Chinese couture designer Guo Pei featuring a dramatic train-cape and opulent fur detailing, plus Christian Louboutin heels and Cartier jewels.

in the “sheerest: a completely see-through Givenchy Haute Couture by Riccardo Tisci custom-made gown with strategically placed colorful crystals, plus, close to 100 carats of Lorraine Schwartz jewels, nude platforms and a sky-high pony.

in a black velvet tuxedo with fringed scarf and wearing a see-through, heavily embellished beaded gown with fringe train (both firsts from Peter Dundas’s return to Roberto Cavalli). Kim adds some sparkle with $2.8 million Lorraine Schwartz diamond earrings.

in an ombré sequin dragon design in a super-revealing mermaid silhouette by Atelier Versace with matching red Swarovski clutch and eye shadow.

in custom jade-green side-laced Calvin Klein Collection and Chopard High Jewelry diamond drop earrings.

in a bright red strapless Jason Wu dress, styled with sleek, straight hair and tons of blingy accessories (and PEOPLE got a glimpse inside her jewelry fitting with Tiffany & Co.!)

in a V-neck column gown with studded metallic detail, matching opera gloves and clutch (all Prada), accessorizing with a knotted wrap-around headband, Solange Azagury-Partridge earrings and fiancé Jason (in a Prada tux).

in a wide-armed, voluminous Balenciaga ball gown decorated with 14,000 sheared feathers and hand-embroidered black rhinestones. Balenciaga wedge boots, custom hair combs and Fred Leighton jewels (plus the arm of designer Alexander Wang) finish the look.

in a shimmering gold custom Michael Kors gown with an open back and high neck, plus an Edie Parker clutch, Charlotte Olympia platform pumps and a sparkling Lorraine Schwartz headpiece (which happens to be 100 carats!) around her topknot.

in a formfitting floor-length black Dior Haute Couture dress with a multicolored yoke and beaded bib (plus her new longer locks).

wearing a studded long-sleeve, high-collar Alexander Wang gown featuring major side and shoulder cutouts, and sporting new ice-blue hair to go with her Ana Khouri ear cuff.

in a black Balenciaga trapeze gown, with a circular train, silver chainlike collar, Fred Leighton jewels and black clutch.

wearing a chain-metal see-through Alexander Wang halter dress with a wide belt, plus Chopard jewelry (and her parents!).

wearing a strapless black ball gown with a graffiti-inspired print (and matching paint can clutch) with opera-length gloves – all Moschino. (That pixie cut, we’re guessing, is courtesy a wig.)

makes a statement in a printed Giles mini-dress with teensy pleats and Cartier jewels.

the newly engaged couple: Robert, in a black tux, and FKA, in a multicolor Christopher Kane gown featuring a funky “Lovers” mosaic design.

accompanied by Zac Posen (in Brooks Brothers) and wearing the designer’s beaded navy ball gown with cutout back details, Chopard jewels – plus a sleek, short new hairdo.

in custom Fausto Puglisi featuring a plunging black velvet top and hand-embroidered sun-motif high-low skirt, and a matching spiked gold headband.

in a bright red custom Maison Margiela “Artisanal” by John Galliano corset top featuring a paillette-covered bodice, with tiered skirt, Lorraine Schwartz jewels and her legendary blowout waves, alongside in white tie and tails.

in a red column Marc Jacobs gown featuring silver studs, plus Chopard gems, a small Judith Leiber clutch and some new, blunt fringe.

in a custom Ralph Lauren Collection gold lamé hooded gown (the fibers are real metal!), Repossi jewels and a Benedetta Bruzziches clutch.

in a custom Givenchy Haute Couture corseted halter dress embroidered all over with gold paillettes, plus platforms by the brand and Piaget jewels.

in a bubblegum pink corseted ballgown with beaded floral detail, bow-embellished shoulder straps and metallic green Mary Jane pumps and clutch (all Prada) plus Harry Winston jewels.

in a silver bustier top with sheer pants (both Chanel Haute Couture), plus fine jewelry by the line – and accessorized with a Judith Leiber clutch, T-strap Giuseppe Zanotti Design heels and fresh flowers in her hair.

in a black, long-sleeve St. John Knits gown with a low open back, Fred Leighton jade earrings, with a Judith Leiber clutch and wearing magenta flowers (to match her lipstick) clipped into her bombshell waves. (See the making-of pics here!)

the veteran supermodel shows newcomer Gigi the ropes – Karlie in a black-beaded halter Atelier Versace design with sheer skirt and Fred Leighton jade jewels, and Gigi in a V-neck custom Diane von Furstenberg gown featuring a thigh-high slit, ruby-and-diamond Lorraine Schwartz jewels (worth over $500,000!) and strappy red Christian Louboutin shoes.

in a plunging custom Altuzarra gown with a feathered iridescent bodice and intricately embellished train, plus the best smoky eye (possibly of all time), Giuseppe Zanotti Design heels and Ana Khouri earrings.

in a sweetheart-neckline ball gown with custom graffiti “Rebel Heart” detail, accessorized with a black cape, fingerless gloves and a gold clutch (all Moschino) and a Jennifer Fisher “M” necklace.

in an origami-neckline, strapless hand-embroidered gown with a super-high slit, plus a strappy platform shoe and black clutch (all Kenzo) plus Cartier jewels.

wearing a strapless white floor-length Balenciaga dress with black floral design (which took 120 hours to hand-bead) and drop-down sculptural silver Balenciaga earrings, plus a Fred Leighton bracelet.

in custom ivory Vera Wang Collection with a keyhole at the bodice and black tassel accents at the arms, plus Lorraine Schwartz jewels and a crown of white flowers.

wearing a strapless burnt orange Jason Wu gown that shows off her growing baby bump, accessorized with sparkling studs and a bracelet (all Forevermark).

in a black Stella McCartney jumpsuit featuring a bra top and skinny pant, ankle-strap pumps (also Stella), Cartier jewels and and (fake) floral body tattoos.

in a shimmery, slinky gold Diane von Furstenberg halter dress, Christian Louboutin sandals, drop earrings and bouncy waves.

in a bright-red Giambattista Valli Haute Couture ballgown with a huge tulle skirt, plus black beaded accents at the collar and cuff and Fred Leighton jewels.

in a J. Mendel couture hand-painted halter gown with sleek cutouts and hand-embroidery, plus Cindy Chao butterfly earrings and ring (all diamonds and rubies).

in a high-collar black-and-white embroidered Louis Vuitton minidress, with see-through zigzag arm pattern, plus Lorraine Schwartz jewels and Giuseppe Zanotti pointy-toed pumps.

in a black dress with white floral overlay by Louis Vuitton, featuring long sleeves and sculpted shoulders.

in a pleated one-shoulder Donna Karan Atelier column with beaded fringe and floral embroidery, matching fringed earrings and an Edie Parker clutch.

in a black-and-silver sweetheart neckline Chanel Haute Couture micromini, Bally strappy sandals and whimsical matching “Matryoshka” Chanel clutch and jewelry by the line.

in a long-sleeve magenta gown with Kimberly McDonald for Gemfields earrings and a multicolor Charlotte Olympia fan clutch.

adding to their collection of memorable Met Gala moments with coordinating black gowns – Mary-Kate wears a robe-style shearling-trimmed number and Ashley’s in a tiered and puff-sleeved look (both are in David Webb jewels).

in a red sequin bolero-style top worn open over high-waisted trousers (both Thakoon), accessorized with a tasseled belt, Rauwolf clutch and custom Jacob & Co tassel emerald-and-diamond earrings.

in a custom rose-gold Marchesa dress with sweetheart neckline and floral beading (we have an exclusive peek at the designers’ sketch!) and Lorraine Schwartz earrings.

in an electric-blue Michael Kors cutout gown with an open choker by Delfina Delettrez featuring two dangling pearls, Jennifer Fisher earrings and a high-shine Lee Savage box clutch.

in a custom Givenchy by Riccardo Tisci gown featuring a black crystal-beaded corset top, flared train and simple messy waves.

in a blue long-sleeved, body-hugging Calvin Klein Collection gown featuring a hand-painted design and an open back, plus a clutch and heels by the line and Fred Leighton 19th-century jewelry.

in a body-hugging nude Atelier Versace dress with a strategically swirled bodice and a high slit to show off her Christian Louboutin, plus ruby lips and a sleek bun.

in a deep forest Valentino gown with wrapped chiffon and a leather belt, deep wine lips and Fred Leighton Art Deco jewels.

sporting his new haircut in a gold embroidered suit jacket, with black collarless shirt, black skinny pants and shades.

both in Valentino – Hannah in a Haute Couture tulip-print gown with side cutouts showing a black crop top, alongside husband Eddie wearing a dapper tux.

wearing a one-shoulder tomato-red J. Mendel dress with a draped and knotted bodice, a Kotur gold clutch, Christian Louboutin heels and Marina B. gems.

in a high-collar, deep-neckline white Diane von Furstenberg gown with floral detailing along the skirt, plus Kimberly McDonald jewels and Stuart Weitzman heels.

in a custom fit-and-flare Coach dress with a personalized clutch by the label and perfectly matched lavender and black heels, plus jewels by Monique Péan and Repossi.

in a simple, elegant red halter gown by Michael Kors with twin gold cuffs and glossy red lips.

wearing a deep-V, body-hugging embroidered tan Michael Kors design, gold clutch and Lorraine Schwartz jewels, including diamond stud earrings and an orchid floral diamond cuff.

wearing a custom Tory Burch tunic with crystal embellishments around the tunic and waist, plus matching pants and sandals by the brand.

in custom Tory Burch featuring a draped bodice and red-and-white embroidered cranes, plus a custom Tory Burch clutch and David Webb ring.

in a custom Hilfiger Collection mini with a high neck and full, gold-embroidered sleeves, plus serpentine gold Giuseppe Zanotti heels, a Judith Leiber clutch and Fred Leighton mother-of-pearl and diamond Lotus Flower earrings.

in a flapper-inspired silver, fringed, tiered Marchesa gown, with T-strap metallic sandals and Marchesa Eternal jewelry.

Both in Calvin Klein Collection: Rose in a plunging maroon gown with thigh-high slit skirt and polished accessories (all by the brand), plus Delfina Delettrez jewels, and boyfriend Bobby wearing a dark suit.

wearing a black-and-white Roland Mouret gown with plum and ochre accents, plus a gold clutch and earrings.

in a custom one-shoulder Prabal Gurung design in “emperor’s yellow” with bow detail and long train, accessorized with gold Jennifer Fisher bracelets.

in a Marc Jacobs V-neck gown with a circular gray-and-maroon-pattern design and Steven Webster jewels.

in a deep red, 3/4-length-sleeve dress, with lace cutout design and oval-shaped, ruby-colored earrings.

in a muted blue floral-print Prada gown with navy blue cape, matching clutch (also Prada) and sparkly sapphire Anna Hu Haute Joaillierie drop earrings.

in a midnight floor-length custom Hilfiger Collection column gown with silver earrings and a Judith Leiber clutch, with her hair pulled back into a sleek bun.

wearing a custom Erdem tea-length dress with bow detailing at the waist and dark floral embroidery and teal pumps.

in a hand-painted Chanel Haute Couture strapless dress with purple ombré accents, plus Chanel Fine Jewelry, black chain-strap bag and silver Bally sandals.

in a Chanel Haute Couture black bolero top with full skirt featuring watercolor flowers and T-strap pumps, plus Chanel Fine Jewelry.

in a burgundy macramé gown and mirrored black clutch by Burberry, plus Lorraine Schwartz jewels and Christian Louboutin heels.

in a fishnet body-hugging dress with red and yellow symbol overlays and a matching collar (we’re guessing it’s her own design).

in a custom Givenchy Haute Couture by Riccardo Tisci gown with 3D plastered lace and pearls, wine lips and major Tiffany & Co. jewels.

in a white ruched Atelier Versace gown with thigh-high slit and cape detailing, plus Alexandre Birman heels and an elegant updo to show off her Anna Hu Haute Joaillerie emerald drop earrings.

in a collared, long-sleeve, Valentino gown with a beaded, embroidered design, playful cat-face Charlotte Olympia clutch and topknot.

in a Philip Treacy sculptural red and silver headpiece, featuring tassels and flames, plus (oh yeah, her dress) a black one-shoulder gown with a cape, plus jewels by Fred Leighton, Jennifer Fisher and Cindy Chao.

in a deep red Marchesa with a plunging neckline covered in 3D flower appliqués (appropriately, they’re poppies) and a gold Edie Parker clutch.

in a strapless dress featuring a fuchsia bow design, with a bright yellow belt, midi-length navy skirt and criss-cross blue heels, plus Jennifer Fisher and House of Lavande jewels.

in a cream-and-gold cap-sleeve Dolce & Gabbana Alta Moda dress with embroidered floral appliqués and matching gem-studded neckline, drop earrings by the label and coordinating crown.

in a custom J.W. Anderson off-the-shoulder gown with a white bodice and forest skirt, both made of vintage silk crepe de Chine, plus red heels, Cartier jewels and finger-waved hair.

in a purple long-sleeve Prabal Gurung dress featuring a textured overlay with rectangular paillettes and a faux bob.

wearing a structured strapless deep blue Prabal Gurung gown with white train, accessories from her own collection and dramatic Cindy Chao flower earrings.

in a poufy white full skirt with structured navy jacket over a matching crop top and sapphire Lorraine Schwartz jewels.

in a gold, gem-studded corset top with off-the-shoulder straps, a full, tulle bright red skirt, plus matching gold wrist cuffs and headdress.

in a striking gold-pailette column and matching Chopard drop earrings with a stained glass-effect full cape and center-parted bun.

in a mermaid-style gold and black Burberry gown with a low neckline, feather trim and matching cape, plus accessories (also by the line).

wearing a shiny red figure-flaunting design, with a knotted, high-collar neckline and a purple clutch with fringe tassels.

in a custom Topshop beaded dress with a play on a Mandarin collar, plus bronze Brian Atwood heels and a navy Rauwolf clutch.

in a plunging white Zuhair Murad dress with see-through side detailing, super-sparkly tassel earrings and a silver clutch, with her partner, Sean (you know him as Diddy), in a black tux.

in an emerald-green, one-shoulder Ralph Lauren Collection gown with shoes and a bracelet by the designer, plus Monique Péan earrings and an Edie Parker clutch.

Edward, in a black suit with gray tie, and Shauna, in a navy strapless mermaid gown with silver shimmery details.

in a two-piece black-and-white dress with attached white-piped cape, Nicholas Kirkwood heels and a graphic Rodo clutch.

in a powder-blue, tiered-and-ruffled Carolina Herrera gown with a modified mandarin collar, jade-colored earrings and a deep wine lip, plus a Judith Leiber koi-shaped clutch.

showing off her new brunette locks in a dotted pale-blue custom Topshop mini, white clutch and silver platforms.

both in Valentino: Lisa in a fitted, bustier-style ball gown with a high neck and lace hemline, and accompanied by with ex-husband Lenny in a black suit and sunglasses.

in a high-slit lavender Atelier Versace gown with intricate rainbow embroidery and asymmetrical sleeves, plus matching heels.

in a shiny red gown with a black wrap-around bow/cape situation, styled with baby bangs and a coiffed updo.

wearing a tea-length deep red strapless dress with black studded jewels, long drop earrings, netted Gigi Burris headpiece and ankle-strap Alexandre Birman sandals.

in a long-sleeve, high-collar ruched dress with high leg-slit, accessorized with long fringed earrings, shimmery gold belt and strappy pumps.

Alexi, in a strapless gray and white Carolina Herrera gown with dangling earrings, box clutch and top knot, with husband, Seth in a royal blue Brunello Cucinelli tux.

in a robe-style orchid dress with jade trim and multicolor embellishment by Gucci, plus pom-pom-adorned sandals.

Vogue’s Editor in Chief wears a floral-print column gown with sculptural shoulder detail, and her daughter is in a crimson shawl-neck Alexander McQueen cherry blossom-print dress with circular crane-motif train and Fred Leighton jewels.

in a floral-patterned gown of her own design with a wide neckline and full skirt, plus gold Fred Leighton jewels.

in a one-shoulder, see-through violet Roberto Cavalli by Peter Dundas gown with strategic floral embroidery and black collar necklace, plus Chopard diamond studs.

in a black see-though lace-overlay Michael Kors gown, with a silver bracelet, earring and clutch.

in a structural white cap-sleeve Carolina Herrera ball gown with flower appliqué and Cheongsam-inspired collar, plus Cindy Chao jewels with a matching clutch, accompanied by the designer herself.

Lauren, in a bright red one-shoulder column gown with a matching cape, and black box clutch, with husband David, in a classic tux.