Designer Aviva Falk shares how she went from being a Midwestern girl to selling her clothing alongside of the world's biggest names in fashion. A Blog By Cosmopolitan. When you speak with Aviva Falk, you can see pretty quickly why her clothing line is called, "Viva Aviva." The girl not only lives for fashion, but she has a genuine enthusiasm that makes you feel like she always has something to celebrate. And she does. After moving to New York to pursue her dream of starting h