True to form, Jennifer Aniston wore her infamous hair in a smooth blow out (courtesy of Chris McMillan for Living Proof), and kept her makeup natural with a shimmery glow and glossy nude lip.

The "Downton Abbey" star wore one of our favorite beauty looks of the evening, pairing classic red lips and a piecey lob.

"The Theory of Everything" star kept her skin and lips (thanks to Dior Rouge Dior Lipstick in Trompe L'Oeill) as peachy as her Balenciaga gown. For a smoky hue around the eyes, Sabrina Bedrani used Dior 5 Couleurs Eyeshadow in Femme Fleur and Diorshow Fusion Mono in Hypnotic.

Alex Polillo for John Frieda Hair Care kept Jones's look structured with a slicked back knot.

Makeup artist Molly R. Stern gave the "Wild" star a berry stained lip using Laura Mercier Crème Smooth Lip Colour in Cocoa as the base and Lip Glacé in Black Cherry over top.

Witherspoon's retro, wavy ponytail completed her polished look.

Laura Carmichael wasn't the only "Downton Abbey" star to impress on the red carpet. Joanne Froggatt went with retro side-swept waves and a neutral makeup look that was simple but pretty.