First thing's first - Saoirse Ronan, you ABSOLUTE GODDESS. Everyone expected something boho, something floaty, something pale, and she brings the rocking disco diva by way of an shimmering mermaid frolicking off the Emerald Isle thanks to Calvin Klein. Nailed it. Who needs an Oscar when you look this good. 

While Spotlight's Rachel McAdams appeared to be the only other guest sporting lush green (August Getty Atelier)...

Plenty of others went the way of the Ronan, and brought a bit of shimmer to the Oscars red carpet - including Kate Winslet (wearing Ralph Lauren and Leonardo DiCaprio), Margot Robbie, Naomi Watts, Emily Blunt (Prada), and Julianne Moore (in a Chanel dress Kendall Jenner modelled recently)

The only person to knock em dead in red was Charlize Theron (Dior)...

But there were plenty to embrace a plunging necklines, like Olivia Wilde, who reportedly sent E!'s Fashion Police into a flap with her array of angles in Valentino...

Others who wore white include Lady Gaga (Brandon Maxwell), and Rooney Mara (Givenchy, it does look at bit like she's bursting out of her shirt).

There was a few who didn't look quite alright on the night (IMO), and they include Heidi Klum (Marchesa), Daisy Ridley (Chanel), and Sandy Powell. 

There were those who also danced to the tune of their own drum, wearing some completely different looks, like Best Supporting Actress nominee Alicia Vikander in Custom Louis Vuitton...

Best Actress Winner Brie Larson sported a lush illusion dress (as in the bodice keeps making our eyes blur) courtesy of Gucci...

Fellow Best Actress nominee Cate Blanchett looked stunning in Armani Prive

Also going floral, we have Amy Poehler in Andrew Gn, as did Chrissy Teigen in Marchesa.

Stealing the show, Kerry Washington in Atelier Versace...

Someone had to bring the Beyonce, and that was Jennifer Lawrence in Dior Couture.

And there were those who kept it classic, like Tina Fey and Jennifer Garner - both in Atelier Versace. 

See, we told you Saoirse won the whole thing!

For all the looks from the night, check out the gallery below. Or you could busy yourself with the Vanity Fair Oscars After Party - which is where are the real action happens.