Ksenia Bradner in Alice + Olivia Spring 2012

Ksenia Bradner and her BFF Taylor Swift attended the launch for Post-It’s new anti-bullying campaign, held at New York City’s PS 15 Roberto Clemente Elementary School.

She looked super-cute in an Alice + Olivia "Alissa" floral print silk dress paired with Kate Spade "Sarah" baby blue bow slingbacks.

I can't think of a more summery, event-appropriate look.