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Channeling the deep blue sea, perhaps? Kate wore this jeweled-bodice Badgley Mischka to the 2005 Academy Awards.

Looking simple and subdued in a black halter gown at the 2002 Golden Globes.

By wearing this beautiful scarlet one-shoulder gown to the 2004 Oscars, Kate single-handedly put designer Ben de Lisi on the Hollywood map.

Kate later selected a minty fresh Valentino dress for the 2007 Oscars—one of the more unexpected colors she's ever worn.

In simple black Ben de Lisi at the 2005 Critics' Choice Awards.

When in doubt, Kate knows you can't go wrong with a classic LBD. The one she's wearing here is from Dolce & Gabbana.

The British actress always looks fantastic in jewel tones, and this perfectly-fitted Narciso Rodriguez she wore to the 2009 SAG Awards was no exception.

In a sophisticated black Yves Saint Laurent column gown at the 2009 Golden Globes.

This slate-gray satin YSL, with its contrasting black tulle panel, was a lovely choice for the 2009 Oscars.

Continuing her love affair with YSL, Kate chose a strapless silver look from the label for the 2010 Oscars.

Wearing yet another look by Stella McCartney at the 2011 Met Gala.

We loved this polka-dotted peekaboo Stella McCartney Kate wore to the premiere of her HBO miniseries Mildred Pierce.

For 2011's El Museo Gala, Kate slipped into this plunging duo-toned Narciso Rodriguez creation.

Kate wowed in this cap-sleeved, fiery Elie Saab at the 2011 Emmys.

In black-and-white Jenny Packham at the 2012 Golden Globes.

After Kate slipped into this incredible slimming Stella McCartney illusion dress, the piece swiftly sold out across the country. It's not hard to see why.

Kate chose this black Jenny Packham gown with crystal-beaded cap sleeves for the premiere of Titanic 3D—and looked just as beautiful as she always does.