5. BEST: Return of the slip dress! Rihanna rocked a red hot Calvin Klein mini dress at the 2012 GQ Men of the Year party at the ChateauMarmont in Los Angeles, which she paired with matching Manolo Blahnik sandals and Neil Lane bling. 7. BEST: Dakota Fanning was nearly unrecognizable at the Los Angeles premiere of The Twilight Saga: Breaking Dawn Part 2 in a teal Elie Saab Couture gown, showing off her newly darkened locks.