Slick street style and hot red carpet arrivals are at the heart of our favorite looks this week. Additionally, the crisp Fall air has our favorite style-setters topping off their enviable ensembles with Fall's sophisticated blazers trend. From Miranda Kerr's on-the-go look in Paris to Molly Sims's party frock, these celebs make quite the case for owning your own polished topper. But that's not all; inside you'll find inspirational looks from Mary-Kate, Ashley, and sister Elizabeth Olsen, casual style to steal from Katie Holmes, and more of our favorites in this week's top 10. Click through to see them all.