It was another busy day for the award-season A-list, who bounced from the Academy Award Nominees Luncheon yesterday afternoon to the Hollywood Reporter-hosted fete last night. After a quick change, Jennifer Lawrence, Naomi Watts, Jessica Chastain, and Amy Adams hit the red carpet at Spago to celebrate their Oscar nods, showing off another round of chic event style. Where the luncheon called for feminine, polished sheath dresses, the nighttime festivities were a chance to get a little sexier and sleeker. Jessica slipped into a chic LBD from Givenchy, Jennifer opted for a little shine (and major waves) in a nude Valentino dress, and Naomi took the more casual route in a pair of metallic skinnies and a white A.L.C. blazer. Step inside for all the details — then be sure to cast your vote for the chicest (Oscar-nominated) guest in attendance.