Blake Lively's super-short Marchesa shows off her long, lean legs on the red carpet at tonight's Costume Institute Gala in NYC. The Gossip Girl's flirty, girlie dress was a similar hue to the sexy gown she wore last year, only this time it was her stems she was showing off rather than some of her other famous assets. Her slicked-back hair let the ruffles get all the attention while the shade perfectly accented her tan. Is it a favorite or not doing it for you? So far you're loving her frock and undecided on her beauty!