Alessandra Ambrosio

And my daughter really likes Justin Bieber, so I think she'll have fun watching him. But I think Rihanna is the perfect match for the Victoria's Secret show because she's really beautiful, she's really sexy, and she's really talented.

The designers usually don't like to say until we're on the runway. Like when I did Prada last year, I couldn't mention doing Prada or even Tweet or take a picture and put it on Twitter saying I was backstage at the Prada show. And Dolce was the same thing. They like to keep a little surprise, I guess, a little secret for everybody.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.