She's walked red carpets , posed for magazine covers and even attended a Chanel Couture show in Pari s.

But somehow Elle Fanning hadn't yet sat front row at a New York Fashion Week runway show -- until yesterday.

The 13-year-old actress attended the Marc by Marc Jacobs show, wearing an adorable monochromatic top-and-shorts combo with her bright blonde hair loose. Sitting front row next to Marc Jacobs president Robert Duffy (he of the creepy law suits and shirtless videos ), Elle watched models walk down the runway wearing Marc by Marc Jacobs duds -- something she's fairly familiar with, considering she posed for the Fall 2011 campaign .

Elle also attended the Ohne Titel show at Milk Studios, gamely posing for street style photographers outside in a sophisticated, dare we say hipster ensemble.

Check out the rising fashion star below... do you like her Fashion Week looks?