Sorry Academy Awards, but The Met Gala is the most fashionable evening of the year.

The Costume Institute Gala, better known as The Met Gala or Met Ball, went down on Monday at the Metropolitan Museum of Art in New York City -- where some of the biggest stars turned heads in some seriously stylish couture.

The theme of the night was "White Tie and Diamonds," to honor Anna Wintour's "Charles James: Beyond Fashion" exhibit at the museum.

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Designer Charles James was known for making some gorgeous ball gowns, and we saw a ton of sexy silhouettes around the bodice and big trains on the red carpet.

Stars like Sarah Jessica Parker, Taylor Swift, Blake Lively, Charlize Theron, Karolina Kurkova, Sarah Silverman and Ivanka Trump all sported some classic gowns that paid homage to the designer du jour.

And then there were the ones who went outside the box.

Kim Kardashian pulled an Angelina Jolie with her leggy Lanvin, while stars like Rihanna, Anne Hathaway and Emma Stone wore two-piece dresses that showed off their midriffs. And then there's Beyonce, who slayed in a sparkly black Givenchy gown and matching headpiece. 

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Lupita Nyong'o, who usually kills is on the red carpet, was a big miss for us -- and she wasn't alone. 

People like Zoe Saldana, Katie Holmes, Sandra Lee and even the gorgeous Kate Upton disappointed in the dress department. And Zoe Kravitz almost flashed everyone at the event, but stepping out without any underwear on!

Check out the gallery above to see all the looks -- and then let us know who you liked best in the comments below!

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