(6 of 10) Best Dressed Party GirlsThe holidays are here, which means office parties, cocktail hours, and other merry-making are bound to fill up your social calendar. To help make festivities all the more fun, we’ve outlined the 10 best party dresses for every shape and style. Fergie The Dancing Queen: The season’s glittery styles appeal to those curvaceous girls who tend to steal the spotlight on the dance floor. Fergie turns heads with a slinky mirror-accented number—bring out your inner Spice Girl with a sequined designer version. Day Birger Et Mikkelsen, $238.