In their plunging gowns, embellished with sequins, glitter and jewels, the actresses looked anything but boring.
One of the most daring choices was that of Hudson, who bared her toned figure in a clinging Versace gown. The backless choice had cut-outs at the side. Accessorising with a USD 2.2 million of diamonds, the actress made a sparkling entry.
Equally eye-catching was Lopez, in a pale caped Zuhair Murad gown that combined a plunging neckline with high slash at the leg.
Despite grey skies and a winter chill, nominees such as Emily Blunt and Pike braved the cool weather in revealing dresses.
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Pike, who welcomed her second child just a month ago, wore an ethereal layered white chiffon Vera Wang gown with daring cut-outs at the waist. She accessorised with Brian Atwood sandals, and Fred Leighton jewellery.
Also rocking white was Blunt, who arrived with her husband John Krasinski.
For pregnant actress Keira Knightley her choice was a pale high-necked delicate couture Chanel dress, embellished with butterflies and feathers. Keira was escorted by her husband, musician James Righton, who she wed in May 2013.
E! host Giuliana Rancic looked a picture of glamour in her white Jennifer Fisher gown with fur cover-up, before swapping into a jaw-dropping fishtail gown.
Host Tina Fey stuck to the colour of the night as she wore a balloon hemline white gown with black details.
While white was the standout choice of the night, red was a popular shade for those hoping to catch the eye. And the shade certainly did the job for Heidi Klum, whose vibrant one-shouldered scarlet gown displayed her model figure to perfection.