Fashion's love affair with television presenter Harper's Bazaar:
"My ex-boyfriend [photographer David Titlow] showed me Antonioni's 1966 film Blow-Up in my late teens. I remember seeing Jane Birkin. And I couldn't believe it. She even made just wearing a pair of tights look sexy... I think the sixties vibe suits my body type, which is skinny legs and a boyish frame."
The newly-single presenter adds: "It's the groupie vibe that I'm attracted to. They had these amazing love affairs, and both the men and the women were made amazing by them. The girls in the sixties were never overshadowed by the men they dated. You can talk about Jane Shrimpton without having to mention Bailey or Terence Stamp first."
She also let slip a hint of frustration at one of the side effects of being a style icon: "Everyone copied my sodding coat for a while too. It was my Harrods kid's vintage one. Every girl suddenly had one and I was like, 'Arrgh!'"
For more from Alexa's photoshoot just click on the gallery below:
The October edition of Harper's Bazaar is on sale from 5 September.