Best known as a reality star from MTV's "The Hills," Kristin Cavallari has parlayed her small screen success into a design career. On Tuesday, she debuted her collaboration with Junk Food Tees at New York Fashion Week — showing her collection of vintage-inspired NFL casual wear, plus shoes she designed for Chinese Laundry. The 26-year-old also played amateur photographer for the day, taking over omg!'s Instagram and sharing snapshots from the catwalk and backstage at the STYLE360 New York Fashion Week. We've assembled her best photos for this exclusive slideshow. Check it out and be sure to follow Kristin on Twitter and Instagram.