The First Lady appeared on the Late Show with David Letterman last evening wearing a colorblock Preen Pre-Fall 2012 dress and Alexis Bittar marquis pin. Lovely!
"Michelle Obama in Preen" [Red Carpet Fashion Awards]
P.S. For a fundraiser the same night, Mrs. O wore an inkwash silk printed panel dress from the Reed Krakoff Spring/Summer 2012 Collection, seen here.