Reese Witherspoon, Jennifer Aniston, Emma Stone
Credit: Invision/AP

The stars stepped it up for the 2015 SAG Awards show in Los Angeles, where they managed to look cool and stylish despite the 80 degree temps.

Emma Stone continued her risk-taking streak in a black Dior gown that featured a tuxedo jacket with a long sheer skirt. Jennifer Aniston wowed us again, wearing a beyond sexy vintage Galliano gown paired with a body chain and loose waves. Reese Witherspoon, on the other hand, channeled old Hollywood glamour in a form-fitting one-shouldered white Giorgio Armani gown paired with Harry Winston jewels. But they weren't the only ones who caught our eyes on the Screen Actors Guild Awards red carpet—see all the standout looks in our gallery now!

Plus, watch the stars in action in on the Screen Actors Guild Awards red carpet: