We are SO doing this look come party dress season. There is nothing more glam than a strapless, metallic, sequin number and Kate's look was pretty flawless.
The pastel pink streaks through her signature blonde tresses? Love.
The 35-year-old actress teamed her floor-length dress with Casadei heels, a boxy Edie Parker clutch and Chrome Hearts bling. This is her doing edgy elegance on the red carpet and completely nailing it.
While all eyes were on Kate in her killer outfit, Reese Witherspoon was also in attendance to support honouree Matthew McConaughey, who they've both starred alongside (Reese in 2013′s Mud and Kate in 2003′s How to Lose a Guy in 10 Days).
Reese looked stunning in a print Prabal Gurung dress paired with a killer red lipstick and a retro down 'do.
Anne Hathaway, Jennifer Garner and Jessica Chastain were other leading ladies at Tuesday night's sparkly soiree at the Beverly Hilton Hotel.
LOVE THIS ACTRESS? Take a flick through her style file to see more incredible style moments and don't miss our exclusive interview with the Wish I Was Here star in the video below.
MORE: Kate talks Angelina Jolie, her style secrets and family life below: