pronouncing fashion names

I always laughed at the way American people pronounce foreign words (like cars, for example BMW, Hyundai, Mercedes or Renault), but I must admit, that I always had some problems with foreign fashion names. Although I speak French (well, a little bit, but still) and I knew how to say Jean Paul Gaultier or Givenchy, it was always hard for me to pronounce correctly such words as Loewe or Ralph Lauren. And there we've got a solution - Teri Agins' article for "The Wall Street Journal". From now on you will never make mistakes in saying Nicolas Ghesquière or Lanvin!
But I wish, there were more fashion names explained.