Met Gala's 10 best dressed: Rihanna is a mood; Billie Eilish, Megan Fox nail American theme

The 2021 Met Gala is celebrating American fashion, just days after the 20th anniversary of 9/11 on Saturday, with the theme "In America: A Lexicon of Fashion." While many instantly think of stars and stripes or the colors red, white and blue, these stars took the theme to another level by paying tribute to icons (and even sports) quintessential to our country.

Here's a look at the 2021 Met Gala's best-dressed stars, including Jennifer Lopez and Lil Nas X, who embraced the American theme.

The red carpet ended without any sightings of the Queen of the Met Gala and with plenty of disappointment from fans?

Billie Eilish looked like the belle of the ball in a blush Oscar de la Renta gown that channeled American icons Marilyn Monroe, Grace Kelly and the Holiday Barbie Doll, which Eilish called her "favorite thing in the world.".

I didn’t feel comfortable in my skin and I finally do," said Eilish, who is serving as a co-chair alongside Timothée Chalamet, Amanda Gorman and Naomi Osaka.

JLo took the Met Gala to the Wild, Wild West in a Ralph Lauren gown, complete with a wide-brimmed hat, black feather jacket and a leather belt.

The supermodel paid homage to Audrey Hepburn in a custom sheer Givenchy gown dripping in jewels that is reminiscent of Hepburn's look in the 1964 film "My Fair Lady."

The actress opted for a bright red Dundas cutout gown and sported sleek Bettie Page-inspired bangs

The "Jungle Cruise" actress was dripping in Hollywood glamour while channeling actress Hedy Lamarr in a shimmery gown by Miu Miu that featured a sweeping white cape

The singer took the Met Gala's nickname of "The Super Bowl of Fashion" to a new level, because what's more American than football