Celebrities may know how to turn it on for the red carpet, but when they're sitting down, enjoying (or maybe not enjoying) a fashion show, they often forget that they're still surrounded by cameras.

Thus, fashion week provides great opportunities to see celebrities when they're not controlling what their faces are doing. And often, that means they look absolutely miserable and/or angry. Whether that means they actually are miserable or just have chronic bitchface, we'll never know.

All we do know is that it's really entertaining for us. (And that we're glad the cameras aren't on us because we're sure we'd look just as miz.) From poor Harvey Weinstein to a distraught Ryan Lochte, click through for some prime examples. (We'll be updating throughout fashion month, don't worry.)

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Photo: Gareth Cattermole, Getty Images