>> What to wear for dinner with the president? Well, if you're Charlize Theron, then it's black lace Emilio Pucci. If you're Dakota Fanning, delicate Prada. Rachel Zoe, romantic Valentino; Zooey Deschanel, Oscar de la Renta. All valiant choices, all super chic indeed. However, sometimes it's the most understated look that packs the biggest punch, and Kerry Washington's streamlined, sherbet-hued Calvin Klein Collection was perhaps the evening's most stunning of all. See that — plus all the very best looks of the night — right here, in the slideshow.