Who? Diane Kruger
What? The actress joined the midriff-baring army yesterday in a stunning red leather skirt and cropped white shirt for an appearance at The Grove in LA.
Where? LA, 15 March
Verdict? We haven't seen much of Diane recently, so it's great to spot her looking her chic and sophisticated self - even if she is advocating tummy crunches by the very audacity of her outfit.
See more celebrity leather fans below.