From elegant frocks at the opening of the CH Carolina Herrera Rodeo Drive boutique to leather separates in bold colors at the opening reception for the new Helmut Newton exhibition, it's been a great week for fresh summer fashion at events all over town. We've reviewed the outfits celebs partied and narrowed it down to our favorites that earned an A+ in our style book. See them here in our picks for L.A.'s Best Dressed Guests in these top 10 party looks of the week.