Last night was fashion's biggest night of the year and everyone - and we do mean everyone - was there. Screw the Oscars! For fashionistas, the Metropolitan Museum's "American Woman: Fashioning a National Identity" was the real proving ground:

Met Costume Institute Ball Fashions: The GoodS

There were several major trends on display. Sparkle Motion was very popular. Claire Danes' Burberry take was vaguely Medieval.


Met Costume Institute Ball Fashions: The GoodS

Nicole Richie, typically romantic in Marc Jacobs.


Met Costume Institute Ball Fashions: The GoodS

Gwen Stefani, natch, repped L.A.M.B.


Met Costume Institute Ball Fashions: The GoodS

And it's only fitting that SJP should rock disco-fab Halston Heritage!


Met Costume Institute Ball Fashions: The GoodS

Also 70s-retro: Erin Fetherston in high-sheen Mrs. Roper-chic.


Met Costume Institute Ball Fashions: The GoodS

Marion Cotillard in Dior.


Met Costume Institute Ball Fashions: The GoodS

Repping the obligatory good witches out there: Anne Hathaway in Valentino.


Met Costume Institute Ball Fashions: The GoodS

Doutzen Kroes, in Zac Posen, balances her princessy gown with sexyface.


Met Costume Institute Ball Fashions: The GoodS

Jennifer Lopez, understated in Zuhair Murad.


Met Costume Institute Ball Fashions: The GoodS

And doing "bad witch," Mila Kunis in Vera Wang.


width="500" height="752" />Jennifer Lopez, understated in Zuhair Murad.


Met Costume Institute Ball Fashions: The GoodS

At the sleek end of the spectrum, we have Zoe Saldana in classic CK.


Met Costume Institute Ball Fashions: The GoodS

Doing bridal, Emma Watson in Burberry.


Met Costume Institute Ball Fashions: The GoodS

And fellow child-bride Taylor Swift in Ralph Lauren!


Met Costume Institute Ball Fashions: The GoodS

Call me crazy, but I liked Chloe Sevigny's fun, flirty Proenza Schouler.


Met Costume Institute Ball Fashions: The GoodS

Less controversial minis? Emma Roberts' Marni.


Met Costume Institute Ball Fashions: The GoodS

Ditto Emilie de Ravin.


Met Costume Institute Ball Fashions: The GoodS

Doing deco charmeuse, Jessica Alba in Sophie Theallet for Gap...


Met Costume Institute Ball Fashions: The GoodS

Jessica Biel in Ralph Lauren...


Met Costume Institute Ball Fashions: The GoodS

...and Iman in Prada.


Met Costume Institute Ball Fashions: The GoodS

Saturated color kept the red carpet fun. Amber Valletta's sleek blue was a favorite.


Met Costume Institute Ball Fashions: The GoodS

And Christina Hendricks is absolutely stunning in cerulean L'Wren Scott.


Met Costume Institute Ball Fashions: The GoodS

Kerry Washington in Thakoon for Gap.


Met Costume Institute Ball Fashions: The GoodS

Rachel Weisz in custom Oscar de la Renta.


Met Costume Institute Ball Fashions: The GoodS

Naomi Watts in raspberry Lanvin.


Met Costume Institute Ball Fashions: The GoodS

Thandie Newton is engagingly deconstructed.


Met Costume Institute Ball Fashions: The GoodS

And bravely taking on the yellow family, Melissa George in J. Mendel.


Met Costume Institute Ball Fashions: The GoodS

A rare print, Rachel Bilson's Louis Vuitton.


Met Costume Institute Ball Fashions: The GoodGetty." />