We almost didn't recognize Dakota Fanning on the December/January cover of Teen Vogue. The 15-year-old actress looked all grown up in a vibrant yellow-and-blue Gucci dress, which made her eyes pop. "I'm usually pretty girlie. I love bright colors," she tells the mag. "I'd say I'm kind of modern with a fun twist."

The star of New Moon also dishes that she and Kristen Stewart are practically BFFs. "We became really close," Dakota says, "like we'd known each other for our whole lives. We talk all the time."

Hmmm, we don't know how to feel about that. We're all about girl power, but we hope that K.Stew's sourpuss disposition—and bad style—doesn't rub off on our little miss Dakota. By the looks of things, she's following in the fashionable footsteps of Emma Watson and Selena Gomez, so we're not too worried.

Keep reading to see behind-the-scenes footage from the Teen Vogue photo shoot. Then, check out our Cover Girls: Is That Really You? gallery.