Michelle Obama Bares Arms in Jason Wu

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Photo: Getty Images

Yesterday, Michelle Obama wore a sleeveless black, white, and red dress by Jason Wu at a reception for U.S. ambassadors in the White House. She also pinned her hair out of her face in a way we don't remember seeing before. Earlier, she wore a sleeveless blue frock for a ribbon-cutting ceremony in Bowling Green, Virginia. See the full looks in the Michelle Obama Look Book.