All the Crazy-Fun Photos Celebs Shared from Inside the 2021 Met Gala

Funny faces on point! Billie Eilish and Lil Nas X let it all out in a silly selfie. 

Simone Biles had a front-row seat to Alicia Keys' afterparty performance at Casa Cipriani. 

Reunion! Tennis stars Venus Williams, Maria Sharapova and Serena Williams got together for a grand slam snap.

At Rihanna's afterparty, none other than Real Housewives of Beverly Hills fave Kathy Hilton scored a seat next to the hostess. 

Kim Kardashian, slightly less masked than on the red carpet, shared one smiley shot from a mystery "after party."

Eva Chen was up close with co-chairs Amanda Gorman, Timothée Chalamet, Naomi Osaka and Billie Eilish, who had a moment at the mic. 

Finneas found himself next to Shawn Mendes and had to bring over Benito Skinner, a comedian who often parodies the singer. 

Maybe the no-selfies rule was meant to be broken: YouTuber Jackie Aina scored a snap with none other than Anna Wintour. 

Co-chair Timothée Chalamet posted enchanting images and video from one of the evening's performances. 

"Baddies" SZA, Kehlani and Normani got down at an afterparty. 

Rebecca Hall snapped a pretty pic of her tablemate, Tessa Thompson, giving a glimpse at the centerpieces in the process. 

Reaching new heights, Winnie Harlow posed with fellow stars and models including Indya Moore, Quannah Chasinghorse, Gigi Hadid, Lily Aldridge, Precious Lee and Taylor Hill. 

Kendall Jenner was definitely into the tunes from Kid Cudi at one of the many afterparties. 

Kehlani scored a snap with one of the night's many athletic attendees, runner Sha'carri Richardson.

Artist JR snapped a pic of Billie Eilish and her train heading into the event. 

Maria Sharapova had another all-star run-in, this time with the NBA's Russell Westbrook. 

Don't forget the chefs! Marcus Samuelsson (in the red hat) chose 10 up-and-comers to help devise a plant-based menu for the evening. 

At one of the night's exclusive afterparties, Winnie Harlow got a peek of Busta Rhymes greeting Offset. 

Venus Williams was among the many stars who posted snippets of Justin Bieber's gala performance.

Co-chair Timothée Chalamet broke the no-selfies rule — wonder if Anna Wintour gave the okay? 

Megan Thee Stallion snapped a kissy selfie with fellow music star Olivia Rodrigo. 

Talk about an all-star selfie: Taraji P. Henson, Mary J. Blige, Erykah Badu and Tracee Ellis Ross hung during the gala. 

Artist JR found Margaret Qualley among one of the Met's many exhibits. 

Lil Nas X and Yara Shahidi made for one sparkly pair inside the Met. 

Maria Sharapova couldn't resist a pic with co-chair Timothée Chalamet and artist JR.

Russell Westbrook and Lil Baby posed for a pic while admiring the Met's art. 

Lil Nas X shot a selfie with TikTok favorites Dixie D'Amelio and Addison Rae. 

Jennifer Hudson and Alicia Keys (and their epic trains) caught up at their very VIP table in what Hudson called her "favorite" moment of the night.

Dominic Cooper shared an artsy pic with pal Gemma Chan. "A zesty reminder how much humans miss hanging out together," he wrote of the night.

Simu Liu greeted the hundreds of fans gathered outside of the museum, in a photo captured by Alexis Ohanian. 

Adrienne Warren caught her tablemate Megan Fox rocking out to one of the night's performances. 

Lil Nas X was the night's Instagram MVP, capturing shots like this of Jack Harlow and Lil Uzi Vert. 

The gala is famous for its bathroom selfies, and SNL's Chloe Fineman wasn't going to let the night end without sharing one.

Sisters Chloë and Halle Bailey had the light just right.

Proud husband Alexis Ohanian snapped a behind-the-scenes pic of Serena Williams working it.

Timothée Chalamet and Lil Nas X showed off their best fashion faces. 

Barbara Ferreira and Lourdes Leon took five in the Met Gala bathroom.

Gemma Chan cozied up to the man of the moment, Shang-Chi's Simu Liu.

In the bathroom, Pete Davidson, Lil Uzi Vert, Jack Harlow, Erykah Badu and Lil Nas X got together for a star-powered selfie. 

Winnie Harlow was sure to snap a shot of the night's entertainment.