The expecting Scandal star sported a vampy pout which was a mix of Armani Rouge d'Armani 609 and Neutrogena Moisture Smooth Color Stick in Rich Raisin. The actress' wavy half-up, half-down hairstyle was created with HairArt iTech infrared 450 Flat Iron.
Makeup artist Jake Bailey created an angelic look by applying Avon True Color Eyeshadow Quad in Mocha Latte along the actress' lids with some help from Urban Decay 24/7 Glide-On Eye Pencils. Next he swiped on a Avon Mega Effects Mascara, dusted mark Chic Frills Powder Blush with a dash of Chanel Jardin De Camelias Illuminating Powder on to her cheeks, and finished with Avon Ultra Color Absolute Lipstick in Creamy Melon.
The Oscar winner's makeup artist Nick Barose added radiance to Lupita's complexion by dusting Chanel Les Beiges Healthy Sheer Colour in No. 70 and Chanel Le Blush Creme in Chamade on her cheeks. Her eyes were a mix of the brand's Stylo Yeux Eyeliner in Or Rose with the grey color from Ombres Tracees Quadra Eyeshadow in Jardin Zen. Her lips were a dash of the label's Rouge Allure luminous Intense Lip Colour in Melodieuse and Chanel Aqua Crayon Lip Colour Stick in Brown Copper.
As for her headband, it was by Fred Leighton, same as her jewelry.
The pregnant star's makeup artist Melanie Inglessis created her flawless cat eye with Revlon Colorstay Liquid Liner in Blackest Black. Her lip color was done with a swipe of the brand's Super Lustrous Lipstick in Pink Cognito.
Hairstylist Mara Roszak created this side-swept 'do by first blow-drying the Biel's hair with a boar bristle brush. Then using a 1/2-inch curling iron she gave the ends a little bend. The final touch? L'Oreal Paris Advanced Hairstyle Sleek It Strand-Smoother Serum Spray for extra shine.
The star's nude lip tint was Tarte Lip Surgence in Lucky.
The Sports Illustrated swimsuit issue's cover girl sported a punchy pink pout which was created using Avon Ultra Color Absolute Lipstick in Pure Orchid.
Hairstylist Adir Abergel created the star's ultra soft waves by first applying Oribe Grandiose Hair Plumping Mousse onto damp roots for volume. Then, using his hands to rough dry the hair for more texture. Next, he spritz Fekkai Sheer Hold Spray while curling large sections with a 1-inch iron. Finally he gently brushed out the ringlets for a softer finish.
The Wolf of Wall Street star paired her newly raven locks with a equally dark YSL Rouge Pur Couture Glossy stain #1 Violet Edition. Next was a layer of YSL Effet Faux Cils Creme D'Eyeliner in Cherry Black (yes, an eyeliner!) to emphasize the purple hue.
The Oscar-winner's minimal makeup look (created by Kate Lee) only consisted of a tiny bit of Chanel Perfection Lumiere Velvet Beige Rose 22, Chanel Soft Touch Eyeshadow in Safari, Chanel Inimitable Waterproof Mascara in Noir, and Chanel Rouge Allure Velvet Luminous Matte Lip Colour in La Caline.
The star's classic cheery red lip was a pairing of Giorgio Armani Smooth Silk Lip Pencil #7 and the brand's Rouge Ecstasy Lipstick in Scarlatto.
The Oscar winner sported Diorshow Art Pen eyeliner in Catwalk Black and the brand's Vibrant Color blush in Cocktail Peach. Her lipstick was Dior Addict Fluid Stick in Mirage.
Hairstylist Chris McMillan only used a light misting of Flex by Living Proof hairspray to make sure her hair would hold the retro curls all night but still had lots of movement.
PHOTOS: Best beauty looks at the 2014 Oscars