Met Gala 2021: See standout looks from Billie Eilish, Rihanna, Lil Nas X and more

This year's Met Gala theme is "In America: A Lexicon of Fashion."

Met Gala Monday is finally here again.

After being postponed due to the coronavirus pandemic, one of fashion's biggest nights is back.

This year's event was centered around the theme "In America: A Lexicon of Fashion."

"We called the dress code this time — American independence. And we really want people to have fun and enjoy dressing up again," Vogue editor-in-chief and Met Gala honorary chair Anna Wintour told "Good Morning America's" co-anchor, Robin Roberts.

Co-chairing with Wintour is a panel of iconic Gen Z and millennial notables including Timothée Chalamet, Billie Eilish, Naomi Osaka and Amanda Gorman.

With COVID-19 protocols in place, some of today's biggest stars have gathered in the Big Apple -- all in the name of fashion.

Ahead, see some of the most standout looks of the night, and be sure to check back often for more.

Billie Eilish

The Grammy award-winning singer channeled Marilyn Monroe and old Hollywood glamour in an extravagant tulle Oscar de la Renta look paired with Cartier jewels.

Ciara

The "Level Up" singer "one, two stepped" onto the Met Gala carpet wearing a vibrant sequined green football-inspired Dundas dress inspired by husband Russell Wilson's Seattle Seahawks jersey. She also rocked Wilson's Super Bowl ring.

Kendall Jenner

Jenner dazzled in a sheer, crystal-adorned Givenchy gown and bodysuit.

Rihanna

Rihanna closed down the Met Gala carpet in an oversized Balenciaga overcoat, chic beanie and jewels.

Megan Fox

Fox sizzled in a shiny red Dundas gown that featured gorgeous beading, cutouts and a high leg slit.

Megan Rapinoe

The star athlete wore an American-themed red suit along with a blue blouse that featured white stars by Sergio Hudson.

Lorde

The singer posed in a regal-like open cardigan and matching skirt by Bode and finished off her look with a jeweled crown.

Taraji P. Henson

Styled by Jason Bolden, Henson gave fans a dazzling Moschino moment to remember.

Megan Thee Stallion

The "Savage" rapper wowed in a dreamy Coach mermaid-style dress.

Debbie Harry

In line with this year's theme, Debbie Harry wore a custom Zac Posen look that included a striped red and white skirt and denim top.

Kate Hudson

The actress was pretty in pink wearing a bralette, skirt and feathered cape by Michael Kors.

Gigi Hadid

The supermodel and new mother debuted a red updo which contrasted perfectly with her white and black Prada gown.

Emily Blunt

Blunt wore an angelic Miu Miu ensemble that was bright and beautiful.

Kim Kardashian

The reality star and businesswoman appeared faceless in a head-to-toe black Balenciaga look.

Simone Biles

The star gymnast shined in a shimmering, 88-pound gown by Area.

Jennifer Lopez

The singer and actress went with a Western-style ensemble crafted by Ralph Lauren.

Alexandria Ocasio-Cortez

AOC wore a statement-making white and red look by Brother Vellies that read "tax the rich."

Tracee Ellis Ross

The "Blackish" star wore a luxurious blue gown from Balenciaga's fall/winter 2021 couture collection.

Serena Williams

The tennis star wore a stunning lace bodysuit and feathered cape by Gucci.

Lil' Nas X

The rapper dazzled in an amazing gilded Versace cape and jumpsuit.

Iman

The legendary model glowed in an extraordinary Harris Reed x Dolce & Gabbana.

Yara Shahidi

Inspired by the late iconic entertainer Josephine Baker, Shahidi posed for the cameras wearing an elegant Christian Dior look.

Naomi Osaka

Osaka was amazing in a lovely Louis Vuitton look coupled with rouge eyeshadow and lipstick.

Jennifer Hudson

Hudson dominated attention in a fiery red look by AZ Factory.

Ilana Glazer

The "Broad City" star, who is also co-hosting Vogue's first livestream for the Met Gala, wore a gorgeous printed Aliétte gown that featured fabulous frilly feathered sleeves.

Keke Palmer

The actress and co-host of Vogue's livestream for the event shined in a dazzling floor-length Sergio Hudson gown and beautiful, voluminous hair.

Anna Wintour

Vogue's editor-in-chief wore a printed dress full of vibrant flowers by Oscar de la Renta.

Carolyn B. Maloney

Congresswoman Carolyn B. Maloney turned heads in a statement-making dress that called for "Equal Rights for Women."

Timothée Chalamet

The actor sported a white Haider Ackermann suit, long socks and Converse Chuck Taylors.

Amanda Gorman

Gorman was stunning in a mesmerizing blue Vera Wang gown with a sparkling sheer train.

Dan Levy

Levy posed in a globe-like inspired look by Loewe.

Ella Emhoff

Model Ella Emhoff was ravishing in an Adidas by Stella McCartney look.

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