Nicole Richie wore a Winter Kate dress Saturday to attend the seventh annual Teen Vogue Fashion University at the Hudson Theatre in NYC. She was on hand to speak to aspiring designers and those interested in the fashion industry about her various endeavors. Nicole dubbed the seminar, in which she talked with the magazine"s Editor in Chief Amy Astley, a success. Afterward, she tweeted, "Thank you Teen Vogue Fashion University and everyone who came to the seminar! Perfect morning." The work took Nicole temporarily away from her family, which includes a new addition — Nicole Richie"s new dog Iro is a member of the Richie-Madden clan now!