Versace

The italian fashion house founded by Gianni Versace (12/2/1946-7/15/1997) has always been influenced by cinema, but now that Donatella took over the company, it's Versace that influences arts and cinema.
Here's a list of celebrities that love and venerate the brand :

Blake Lively in Versace fall 2009 for the 61st Primetime Emmy awards

January Jones in Atelier Versace 2010 at the 62nd Primetime Emmy awards

Eva Longoria Parker in Atelier Versace 2010 at the Cannes film Festival

Angelina Jolie in Versace fall 2008 at the Cannes film Festival

Gisele Bundchen in Versace fall 2008 at the MET Costume Institute Gala

Drew Barrymore in Atelier Versace fall 2009 at the 67th Golden Globes

Jessica Biel in Atelier Versace pring 2009 at the Met Costume Institute Gala

Kate Hudson in Atelier Versace fall 2009 at the London premier of "Nine"

Elizabeth Banks in Atelier Versace spring 2009 at the 82nd Academy Awards

Claudia Schiffer in Atelier Versace spring 2009 at the MET Costume Institute Gala