This morning the President and First Lady hosted an official welcome ceremony for British Prime Minister David Cameron and his wife Samantha Cameron in the garden of the White House. On the style front: Mrs. O wore a pale blue dress and jacket paired with metallic heels, while Samantha Cameron opted for a colorblock dress. Perhaps the ladies coordinated their palettes?
Update #1: Designer Zac Posen has confirmed that the First Lady's suit is his creation. The New York based designer has ties to London. He studied at Central Saint Martins, and created a dress that is part of the permanent collection at the Victoria and Albert Museum.
Update #2: Samantha Cameron wears the Spring 2012 Beatrice dress by Roksanda Ilincic.