She also wore bright multi-colored nail polish in shades of yellow, hot pink, and black.
For the event, Stewart wore a sheer white button-up shirt with black, high-waisted leather shorts, and over-the-knee black boots.
Her new brow look seems like it originated from her Met Gala appearance, during which she rocked orange eyebrows with David Bowie-esque bright orange and white streaks in her hair.
If anyone can pull off an edgy look, it's K-Stew.
WATCH: The Best Way to Fill in Your Brows
This article originally appeared on InStyle U.S.