In the midst of all the Cannes chaos, deep in the heart of the red carpet, your favorite star is striking a serious pose. She knows all eyes are on her, and she's working her look. In the case of Bella Hadid, that means a quick adjustment to a Stuart Weitzman heel. For Victoria Beckham, it's all about the sultry gaze - and the model stance that's straight out of an editorial. They're not the only ladies whose looks were unforgettable.