The 2019 American Music Awards Served Up Some Major Looks — See Them All

Taylor Swift wore a green sparkly Julien MacDonald dress with over-the-knee Casadei boots.

The singer showed off her thigh-high boots from every angle on the red carpet.

Taylor's dress was bright with diamond details.

With no shirt underneath her blazer, the singer brought the heat to the red carpet.

A red-hot Katherine Langford wore a Rodarte dress with Stuart Weitzman heels.

The actress twirled in her glamorous gown on the red carpet.

Complete with makeup to match, Katherine Langford's outfit was a work of art.

Country singer Carrie Underwood wore a deep purple dress with shiny Giuseppe Zanotti heels.

The AMAs were in for a treat when Christina Aguilera arrived in a stunning Jean Paul Gaultier dress.

With pronounced shoulders and a big white belt, the singer's dress was so fashion-forward.

Christina Aguilera paired her white dress with a chunky necklace and rings.

The singer showed off her high heels on the red carpet.

"Old Town Road" singer Lil Nas X was hard to miss in his bright green suit and zebra-print shirt.

Lil Nas X worked his look at the 2019 American Music Awards.

Constance Wu looked like a dream in her light pink lace-up dress and white pointed-toe heels.

The actress's dress looked just as good from the back as it did from the front.

Billy Porter rocked a Thom Browne look complete with a dramatic white cape and a matching gown.

The star always brings high fashion to the red carpet, but this time he really outdid himself.

Billie Eilish wore a Burberry shirt and pant set with a glimmering chain mask and sneakers to the AMAs.

The 17-year-old served looks on the red carpet yet again.

His gold shirt featured a cool croc finish.

The ballet dancer's dress plunged low and was detailed with gold clasps.

Diplo wowed the crowd in an MCM suit and black cowboy hat.

Selena Gomez looked better than ever in a strapless green dress with matching shoes.

Ciara's Balmain suit stood out on the red carpet due to its gorgeous shade of blue.

Ciara accessorized her look with the coolest turquoise jewelry.

Singer and actress Alyson Stoner wore a dazzling suit with a silver shirt at the 2019 AMAs.

Her outfit was eye-catching from every angle.

Lizzo was full glam for the 2019 show, wearing a gorgeous orange one-shoulder gown.

The singer completed her outfit with tasteful white heels.

Lizzo's long earrings and large rings made her outfit both bold and cute.

In a gorgeous pink dress with eye-catching heels, Dua Lipa brought effortless elegance to the AMAs red carpet.

Singer Dua Lipa heated up the red carpet in a bright pink silk dress complete with a high slit.

In a Marc Jacobs gown and Sophia Webster shoes, Halsey made a splash at the award show.

The dress featured ruffles, flowers, and all kinds of wow-worthy details.

Singer-songwriter Agnez Mo wore a yellow lace dress with high slit details.

Her jeweled purse and long earrings made her outfit perfectly put together.

Musical artist Tessa Brooks wore a daring purple dress with intricate silver accents and feathered details.

She paired her dress with teardrop earrings and diamond heels.

As one of this year's hosts, Sofia Carson dressed to impress at the AMAs in a Francesco Scognamiglio Couture dress.

The actress's shimmery silver dress looked striking from every angle.

Actress Meg Donnelly's dress was all kinds of stylish.

The actress worked her angles on the red carpet.

Lauren Jauregui flaunted a strapless snakeskin gown on the red carpet.

The singer's dress had a belt detail that complemented her waist.

Former Bachelor star Nick Viall rocked the red carpet in a suit with a green blazer.

Complete with a bow tie, the reality TV actor cleaned up nicely.

Kesha wowed the red carpet in her gold and white ensemble.

The singer paired her look with a gold and black diamond purse.

Shawn Mendes wore a sexy suit with no shirt underneath to the 2019 AMAs.

The "Señorita" singer rocked a puka shell necklace along with a silver chain necklace.

TV host Julissa Bermudez stunned the crowd in a sexy silver dress with a high slit and open front.

Bermudez blew kisses in her high-shine ensemble.

Actress Maya Hawke wore a dreamy black dress with a gorgeous gold headband and Anita Ko jewelry.

The actress's dress was adorned with small white accents and fishnet details.

Actress Sarah Levy looked angelic in a floor-length white gown.

With a slit in the back and a low dipping back, the actress's dress was so dreamy.

Singer Ella Mai wore a tight black dress that highlighted all of her curves.

The dress was complete with shimmering diamond-like details.

Dan Levy wowed the show in his long coat with red details.

The actor paired his outfit with causal shoes and his staple glasses.

Tyra Banks looked extra stylish in a tan suit with black bra underneath.

The fashion icon completed her look with a white hat and black gloves.

Post Malone rocked the AMAs in a checkered suit paired with a silver bolo tie and a matching cowboy hat.

He had some fun on the red carpet posing for the cameras and showing off his style.

Jenna Dewan wore a pink Emporio Armani dress with Stuart Weitzman heels to the 2019 show.

The dancer showed off her cute baby bump on the red carpet.

In a sultry black dress, Regina King was nothing but sexy on the red carpet.

Her shimmering dress perfectly complemented her diamond accessories.

Heidi Klum sported a small dress with a diamond bra at the top and fluffy blue feathers on the bottom.

Notice Heidi Klum's huge dazzling rings.

Actress Jameela Jamil wore a sultry Pamella Roland dress with Alexis Bittar jewelry.

The actress's dress featured a sheer low-cut front and shimmering accents.

Country star Thomas Rhett wore an Etro suit with black Frye shoes to the show.

The singer's suit was budding with flower details.

Singer Pia Mia shone bright in a rose gold jumpsuit.

Pia Mia finished her look with a silver necklace.