Jessica Alba, Pharrell Williams, Dita Von Teese, Katy Perry at Fashion Week Fall 2012 | FashionTV – Jessica Alba, Pharrell Williams, Dita Von Teese, Katy Perry at Fashion Week Fall 2012 | FashionTV SUBSCRIBE: bit.ly www.FashionTV.com WORLD – FashionTV highlights the fashionable people of the world who come to the biggest fashion shows in all the major fashion capitals: New York, London, Paris, and Milan. For the Fall/Winter 2012-2013 season, we spotted Dita von Teese hanging with Alber…