Although we're way past Labor Day, it's way too hot in L.A. to break out the fall wardrobe just yet and stars are still rocking our beloved summer trends. From cutoffs and crop tops to lacy cocktail dresses, the ladies of Hollywood kept cool in a plethora of summery styles over the weekend as they stepped out to events all over town. See them keeping the season alive with our favorite party looks of the weekend in today's Best Dressed Guests.