It was a collection that I thought was cute on the catwalk (or escalators in actual fact), but wasn’t really sure who would wear it in real life. The answer proved to be ‘everybody!’. Marc Jacobs Spring/Summer collection for Louis Vuitton 2013 has proved to be one of the most popular collections ever in terms of celebrity patronage. Everyone, and I mean everyone, seems to have been spotted wearing at least one of the pieces from the range. The collection is an intoxicating mixture of 1960s geometric design and block colour. Think Pierre Cardin, Paco Rabanne and Peggy Moffat modelling and you get the general picture of what this collection…