Tonight (May 4) marks the 2015 Met Gala -- formally known as the Costume Institute Gala -- an annual fundraiser whose proceeds go to New York City's Metropolitan Museum of Art's Costume Institute. Celebrities attend, play dress-up according to that year's theme, and occasionally they offend. It's kind of like the Oscars minus the awards, the entertainment and the ability for us normals to see inside.

It is also one of fashion's biggest nights, in which celebrities try very hard to land on every media outlet's Best Dressed List. This is a rare feat, unless you're Rihanna. The theme for this year's Met Ball -- which will be co-chaired by Jennifer Lawrence, for some reason -- is "China: Through the Looking Glass," and is meant to highlight Chinese art. Cultural appropriation is certainly a concern for this year's Gala, so we hope the majority of celebrities in attendance take care with their attire to be respectful and not offensive, Katy Perry.

The full list of celebrities that will be in attendance are (via Just Jared): Dianna Agron, Haley Bennet, Beyonce, Rose Byrne, Jessica Chastain, Bradley Cooper, James Corden, Benedict Cumberbatch, Hugh Dancy, Claire Danes, Zooey Deschanel, Michelle Dockery, Colin Firth with wife Livia, Neil, Patrick Harris, Anne Hathaway, Ethan Hawke, Kate Hudson, Dakota Johnson, Spike Jonze, Zoe Kravitz, Melanie Laurent, Jennifer Lawrence, Gong Li, Blake Lively and Ryan Reynolds, Jennifer Lopez, Lorde, Baz Luhrmann, Seth Meyers, Sienna Miller, Julianne Moore, Carey Mulligan and Marcus Mumford, Olivia Munn, Lupita Nyong’o, Rita Ora, Sarah Jessica Parker and Matthew Broderick, Nicola Peltz, Katy Perry, Imogen Poots, Maggie Q, Eddie Redmayne, Rihanna, Margot Robbie,Zoe Saldana, Amanda Seyfried, Hailee Steinfeld, Ivanka Trump, Kerry Washington, Harvey Weinstein, Florence Welch, Kanye West and Kim Kardashian, Allison Williams, Reese Witherspoon, Zhu Zhu, Zhang Ziyi, Lily Aldridge, Cara Delevingne, Karlie Kloss and Kendall Jenner.

We'll be updating PopCrush throughout the night as celebs arrive on the red carpet, so be sure to check back to see all the fashion from tonight's Gala.

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