Last Night's Look: Love It or Leave It?We can't stop talking about Rose Byrne's printed sheath, the Duchess's tartan coat dress and more outfits that stars were just spotted in. Check them out, then vote – fashion-forward or fashion fail?

DUCHESS CATHERINE

She's done it again! Kate recycles another piece of her wardrobe – this Alexander McQueen tartan design (first worn for a visit to her her alma mater last year), which she teams with a forest green fascinator and black suede boots for the Christmas Day service at Sandringham in King's Lynn, England.