See: Margot Robbie, Emily Blunt, Ariana Greenblat ... Hollywood beauties slay it at the Critics Choice Awards

'Barbie' actress Margot Robbie looked ravishing in a red, off-shoulder Balmain gown with diamond earrings for accessories.

Emily Blunt stole the show in a Giorgio Armani Prive red frock, embellished with rosettes along one shoulder.

Reese Witherspoon brought her 24-year-old daughter, Ava Elizabeth Phillippe, to the show. Hard to believe she's mother to a 24-year-old! Reese wore Celine by Heidi Slimane while Ava stunned in a Monique Lhuillier.

Jennifer Aniston stunned in a strapless jumpsuit, set off with a belt.

'Barbie' actress Ariana Greenblatt wore an elaborate black-and-white Louis Vuitton gown, set off by Chopard jewels.

'The Crown star' Elizabeth Debicki turned up in a silver-and-black jumpsuit.

Da'Vine Joy Randolp couldn't stop smiling through the evening as she scooped up the Best Supporting Actress award.

Mandy Moore chose a cut-out red sequinned gown, with a low-cut neckline.

Singer Dua Lipa looked ravishing in a red three-dimensional Prada gown.