Holiday time in upon us, but a little thing like seasons won't get in the way of stars donning hot-off-the-runway designer spring looks to high-profile events.  We've seen plenty of them up and down L.A.'s red carpets in the last week, and though these warriors of fashion may be a bit chilly wearing their skin-baring styles, they look great doing it. Let's discuss these Best Dressed Guests in our top 10 favorite looks of the last week.