There's no surer sign that the party season is coming than seeing a flurry of metallic frocks on the red carpet. Kicking off the countdown this year are the lovely Jennifer Lopez and Kirsten Dunst in this mighty pretty Rodarte number. J-Lo keeps her curves (just about) in check choosing to wear it nice and tight, wheras Kirsten goes a little looser and dresses it down with simple opaques. But who does the glitzy number the most justice?