The ponytailed pop princess ruled the red carpet in an over-sized gray tulle ball gown by Giambattista Valli, which she completed with matching silk gloves. Her makeup was just as flawless with a perfect cat eye and nude lip. 

The "First Man" singer wowed in a strapless, weaved leather black Atelier Versace mini dress enriched with Swarovski crystal drops. The glam look included an attached, hand-embroidered A-line floor-length skirt with Baroque motifs, which she accessorized with a $2 million diamond necklace from Le Vian. She kept her long dark tresses sleek and straight, pairing her new bangs with smoky eye makeup. 

For her GRAMMY red carpet debut, the "Juice" rapper channeled Old Hollywood glam in a white gown and matching shawl by Atelier Versace that was inspired by Marilyn Monroe. 

The "Misery" singer opted for a strapless, white bedazzled mini dress by Dolce&Gabbana mini dress with a bell-shaped skirt covered in seashells and microelements from the sea and thigh-high boots. She kept the rest of her look to a minimum, wearing her hair straight and donned small gold-and-pearl earrings and a ring from Mateo.

Neon dreams! The "Old Town Road" rapper was all swagger in an all-hot pink Atelier Versace look that included a cropped jacket embellished with gold studs, Swarovski crystals and Medusa head buttons, leather harness, semi-sheer shirt, double belted slacks, boots and cowboy hat. He accessorized with gold John Hardy rings to really up the ante.

The middle JoBro looked quite handsome in his brocade suit, black turtleneck and dress shoes by Ermenegildo Zegna XXX, while his wife wore her beloved Louis Vuitton, which for the GRAMMYs consisted of a glittery sleeveless top and tiered mini skirt paired with cut-out patent booties and a brick red lip.

The "Boo'd Up" singer put her best foot forward in a ruby red, floor-length Emporio Armani dress that was complemented with a rosy smoky eye, strappy red silk sandals, a diamond necklace by Harry Kotlar and a Yvan Tufenkjian bracelet and ring.

At the GRAMMYs to support boyfriend James Blake, the Good Place star looked ready to shake her moneymaker in a strapless, tiered royal blue Georges Chakra gown that featured a black tulle window along the middle of the skirt.

The "If I Can't Have You" crooner rocked a custom magenta three-piece suit from Louis Vuitton, pairing the ensemble with black patent leather boots from the fashion house and a Bvlgari necklace that features 31 fancy-cut malachites and over 12 carats of pavé diamonds. 

Teigen glowed in an orange Yanina Couture gown that featured a deep-V and dramatic sleeves. Her hair was in soft curls and down, and her beauty look consisted of flawless, neutral makeup. She accessorized with a matching orange clutch, rose gold, silver and diamond earrings and strappy heels. As for her husband, Legend looked sharp in a light gray suit that featured a stylish half-pleated blazer. 

The Daily Show host swapped a traditional black tux jacket for a shiny silver one.

Flower power! The GRAMMY nominee looked sharp in a metallic floral three-piece jacquard suit with Swarovski crystal embellishments by Wolk Morais, which she paired with a shiny button-up with an oversized collar and suede boots that amped up the '70s vibes. Carlile finished her look with a deep side part, ruby eyeshadow and coral cheeks and lips.

Leave it to Porter to make a major statement! The Pose star shined brightly in a custom Baja East by Scott Studenberg turquoise jumpsuit with fringed legs and a matching Sarah Sokol Millinery hat that was reminiscent of the chicest lampshade you've ever seen.  

A star in stars! The "Alaska" singer looked divine in a vintage black silk tulle Chanel dress with a gold star-adorned beaded-and-sequined overlay, which she paired with a gold-and-black bag, shoes, and white gold, diamond and cultured pearl earrings and rings from the fashion house.

The "Don't Start Now" singer chose a slinky two-piece, white Vivienne Westwood tank and matching maxi skirt. A heavy dose of blue eyeshadow and a diamond necklace, rings and bracelet finished off the otherwise simple, chic look.

As if Jonas didn't look sharp enough in a head to toe gold Ermenegildo Zegna XXX look, his wife really took the plunge in an extremely low cut ivory, sequin-encrusted silk crêpe kimono that featured hand-painted peonies, opal stone embellishments, 3-D organza petals and peace ombré fringed sleeves.

The "Everything I Wanted" singer rocked Gucci head to toe, sporting an embellished chartreuse turtleneck layered under a logo-fied shirt-and-pant set. She accessorized with double-G earrings, rectangular sunglasses and fingerless gloves that showed off her long green nails.

The "Last Hurrah" songstress showed off two major trends on the red carpet: an oversized pantsuit -- hers was a custom Christian Cowan black jacket-and-wide-leg-pants set with shiny lapels -- and a nearly naked mesh shirt. She stood tall in the sultry look thanks to peep-toe Sophia Webster platform heels.

Vintage vibes are kind of her thing, and the loved-up "Doin' Time" crooner stuck to her sartorial style in a sequined, fringed silver gown. She pulled her hair off her face in a timeless chignon and finished her look with a black cat eye.

Red hot! The Best Latin Rock, Urban or Alternative Album winner gave off cowboy chic vibes in a fringed leather dress by Alexander Wang complete with three braided belts. PVC heels let the dress -- and those long nails! -- do all the talking, though she did have a bit of fun with her jewelry, rocking a diamond ear cuff and rings by Messika Paris.

The Politician star had some fun with his red carpet look, opting for a black-and-white argyle jacket atop an all-black ensemble.

The boys of BTS coordinated in black, white and tan Bottega Veneta pieces.

The rapper was anything but an "icy grl" when she showed off her curves in this rainbow sequined Moschino dress.

OK, so she didn't walk the red carpet, but our jaws dropped when the night's host opened the show while wearing this incredible silver Alexander Wang number.

in custom Gucci

in Vivienne Westwood

in Ralph & Russo (Chopra Jonas) and Ermenegildo Zegna XXX (Jonas)

in custom Baja East by Scott Studenberg jumpsuit and custom Sarah Sokol Millinery hat

in custom Giambattista Valli

in custom Dolce&Gabbana (Stefani)

in Yanina Couture

in Emporio Armani

in custom Christian Cowan

in Ermenegildo Zegna XXX (Jonas) and Louis Vuitton (Turner)

in Ermenegildo Zegna XXX (Jonas)

in Dundas

in Ed Marler

in vintage Chanel

in Christian Siriano

in Atelier Versace

in Alexander Wang

in Bottega Veneta

in Versace

in Dolce&Gabbana

in Wolk Morais

in DSquared2

in Georges Chakra

in Balmain

in Dolce&Gabbana

in Moschino