It's hard to remember this girl is only 21. Posing up a storm with her latest co-star Ethan Hawk at the LA premiere of their new flick, Getaway, a sophisticated Selena Gomez stole the show in her floral-printed Vera Wang gown with a plunging sheer lace neckline.
Her purple earrings matched the magenta embroidery on her skirt and her makeup was smoky and sexy.
We'll leave you to ponder that one... In the meantime, check out more celebrity brunette style inspiration here: