Whether at high-profile events or in dark commercials with Calvin Klein, we can't keep our eyes off of Rooney Mara. 

The enigmatic beauty is at it again in the latest promotional video clip for CK's "Downtown" fragrance, an urban-themed campaign that combines floral and woody juices to create the latest must-have scent from Calvin Klein. "Downtown" has a musky allure and feminine prowess, with the perfect face to represent this edgy new line. The scent is available in stores and online now, with print ads and TV clips of Mara now in all major mags and TV networks.  The raven-haired starlet looks stunning so we just had to know what some of her beauty secrets are. 

Unfortunately, the supermodel didn't have as many tricks up her sleeve as expected. Mara is all about natural beauty, opting for a minimal makeup look, and often going completely bare-faced. What's more, the covergirl confessed to being "horrible" at makeup application. A no-fuss beauty, Rooney swears by simply sunscreen, healthy eating, and her amazing genes obviously. 

Check out behind-the-scenes action and the dramatic commercial. And don't forget to drop a note in the comments section below!