Reese Witherspoon showed off her slim silhouette in a custom white one-shoulder Giorgio Armani gown at the star-studded award show. She paired the neutral look with a simple, sleek updo and dazzling Harry Winston jewels.
"Modern Family" starlet Ariel Winter flaunted her curves in a tight white gown with a train, which looked beautiful against her newly-dyed black hair. Can you believe how grown up the 16-year-old actress looks now?!?
Viola Davis also wowed in white at the SAGs, sporting a dress with a halter neckline and band above her super-trim waist. The "How to Get Away With Murder" star completed her look with diamond drop earrings and a blingy bangle.
Other sexy stars to rock the trend included Paula Patton, Maggie Gyllenhaal, "Orange is the New Black" star Dasha Polanco, "Downton Abbey's" Laura Carmichael and, randomly, "Beverly Hills, 90210" alum Gabrielle Carteris.
Check out all the stars on the red carpet in the gallery above!
