The Prettiest Hair and Makeup

Charlize Theron has come a long way since shaving off her lengthy strands in June for a film role, and we liked the slight punk rock vibe her platinum pixie gave off. "Her hair has just grown out to a length that can be styled into a sophisticated, yet androgynous, look that complements the sleek lines of her Dior Haute Couture gown," said her hairstylist Enzo Angileri.

Because of the high neckline of Amanda Seyfried's Alexander McQueen gown, her hairstylist Jenny Cho created a tousled chignon, allowing the intricate beadwork to become the focal point. "I felt her dress called for a beautiful, soft updo to complete the timeless red carpet look," said Cho.

Side-swept waves are having a moment on the red carpet, but Reese Witherspoon's strands may be our favorite version yet! Adding a touch of Veronica Lake-esque glamour to her Louis Vuitton gown, Witherspoon wore her pale blond highlights in loose curls. We love the nod to Old Hollywood glamour, and the shiny, mirror-like finish.

Talk about a look that hits all the right notes! Amy Adams's hairstylist looked to a handful of stage and screen icons to create the star's ethereal updo. "For this look, I wanted to channel Hollywood Regency-it was a period between the '40s and '60s that just embodied glamour-and the clean center part was inspired by Barbra Streisand," said Reeves. "Barbra is performing at the Oscars, and it's pure coincidence I used her image as a reference!"

Jennifer Aniston's bold red Valentino number made a big enough statement, so her hairstylist Chris McMillan decided to go the natural route on her strands. "Jen likes to be Jen and she likes her natural look, so we kept the 'California girl' vibe going," McMillan told us. "I wanted the style to look like it had movement, so it's the small details like the layers around the face that really brought the look together."

Halle Berry's makeup artist Kara Yoshimoto Bua went easy on the eyes, opting for a soft smoky look that didn't overpower her detailed Versace gown. "Halle was presenting the James Bond tribute, and the theme of the dress is very Bond Girl-it's kind of like wearing a Cadillac!" Bua told us. "I diffused her eyeliner it with a shadow, then used a dark brown liner along her water line to soften the look."

Adele, who took home an Oscar for her rendition of the James Bond theme "Skyfall," set off her lush lashes with pale, shimmery eye shadow and a pop-of-color lip. "We created a modern take on the classic sultry eye by highlighting and contouring the socket with Armani's Eyes to Kill palette in #6 ($59; giorgioarmanibeauty-usa.com)," said her makeup artist Michael Ashton.

Va-va-voom! Jessica Chastain channeled her inner Marilyn Monroe with her shimmery eye and strawberry red lip. The vivid hue embodied all elements of classic red carpet glamour, and we love how the blue-based crimson made a striking contrast against her complexion.

Jennifer Lawrence was radiant in head to toe Dior-right down to her makeup! Rather than the traditional palette of smoky grey and noir shadows, her makeup artist Jillian Dempsey used the label's 5-Couleurs in Bleu de Paris ($60; nordstrom.com), and finished with a swipe of the Dior Addict Lipstick in Beige Casual ($31; nordstrom.com).

"With an Alexander McQueen dress embellished with gold jewels, and an Audrey Hepburn-inspired updo, I wanted to do a dark smoky eye and classic nude lip," said Hayek's makeup artist Jo Strettell, who used products from Hayek's Nuance cosmetics line to get the look. Using the Beautiful Blends Shadow Palette in Neutral ($9; cvs.com), Strettell applied the black shadow over Hayek's eye, highlighted with the pale gold hue, then finished the look with the Color Vibrance Lipstick in Shimmering Nude ($10; cvs.com).

Always one to stun in her classic beauty looks, Naomi Watts carried some of the sparkle from her sequined Armani Privé gown into her makeup, opting for silver shadow and a pale, shimmery lip. "We loved the Art Deco vibe of the dress, which evoked the Chrysler Building in its statuesque feeling," said her makeup artist Pati Dubroff, who used Chanel's Illusion D'Ombre shadows in Fantasme and Epatant ($36 each; chanel.com) on the star's lids. "I wanted to focus the power on Naomi's gorgeous eyes."