Sorry I don't know who is Sophia Bush, but there're 2 things in this photo draw my attention:
1. Alexander Wang SS09 signature combo dress - this dress is photographed many times, wore by Diane Kruger, Linsday Lohan, etc.
2. Dior Extreme Sandals - exactly the same as Sarah Jessica Parker wore in Sex and the City the movie -- which I luv very very much!!