The end of summer may technically be upon us but L.A. is just starting to sizzle. As the temps get hotter, so do the fashions starlets are rocking out and about to events all over town, and we're enjoying every minute of it. From matching crop top-and-skirt ensembles to peplum mini-dresses and flouncy short shorts, see the celebrity party looks we loved most this week in this edition of L.A.'s Best Dressed Guests.