SAG AWARDS RED CARPET PICS: WHO WORE WHAT AND WHY? KERRY WASHINGTON, JENNIFER LAWERENCE, OPRAH, & MANY MORE

Celebration: Nyong'o accepts the award for Outstanding Performance by a Female Actor in a Supporting Role for 12 Years A Slave. beautiful star stunned in a teal-blue Gucci gown, it was her copper manicure that was doing most of the sparkling. 

They love her! Jennifer Lawrence goes wild for Lupita Nyong'o on the red carpet at the SAG Awards.

JENNIFER LAWRENCE American Hustle star looked amazing in a form-fitting, strapless, sequined, silk embroidered navy and burgundy gown by Dior Haute Couture.

Baby bump? No problem! Scandal's Kerry Washington is well into her first pregnancy, but that didn't stop her from hitting the 2014 Screen Actors Guild Awards in a stylish, bright-pink custom Prada crop top and long black skirt. 

OPRAH WINFREY

TINA FEY & ALICE in Oscar de la Renta

BRADLEY COOPER in Gucci

Sofia Vergara looked gorgeous in strapless, sequined, gunmetal gown by Donna Karan Atelier, which featured an open back and horizontal strap up top. According to the designer, the dress was inspired by "antiqued liquid metal."

JENNIFER GARNER wore a strapless, navy silk bustier gown by Max Mara embellished with a gunmetal belt. 

JULIA ROBERTS wore a custom-designed, pink, mikado silk jumpsuit by Valentino on the 2014 SAG Awards red carpet. 

MERYL STREEP

SANDRA BULLOCK in a green Lanvin

Outstanding Performance by a Male Actor in a Leading Role: Matthew McConaughey, Dallas Buyers Club.

In Dolce & Gabbana (McConaughey) and Vintage Donna Karan Atelier (Alves)

AMY ADAMS in Antonio Berardi

NATALIE DORMER with the played out shaved head.

MORGAN FREEMAN AND RITA MORENO