Where? With husband David at the wedding of Henry Allsopp and Naomi Gummer in Chipping Norton
What? SamCam was one of the best dressed guests at a wedding over the weekend, slipping on this pretty multi-print silk dress. The PM's wife teamed her summer-perfect frock with a skinny waist-cinching belt and classic nude heels.
Verdict? Another style hit for Sam.
See our pick of SamCam's top ten style moments, here: