We corazón this look! Check out Seventeen's pointers on how to recreate Leighton Meester's adorable outfit: Throw on a long, neutral-colored cardi over a loose, summery dress — and bam! www.gossipgirlshow.com
In Episode 3.18, "The Unblairable Lightness of Being," Blair competes for fashion supremacy in the same bow-bedecked Fall 2009 Marchesa dress that British model Lily Cole wore to the L.A. premiere of The Imaginarium of Doctor Parnassus.