Mumbai, Nov 16: Fashionista Sonam Kapoor was seen sashaying down the runway for International designer Mark Fast on Day 1 of the Signature International Fashion Weekend 2013 in Mumbai recently. Clad in a very unique and exquisite dress designed by Mark, Sonam expressed her excitement and joy at the show. SIFW will also showcase designs of many more International designers. So, this is just the beginning, watch out for more!