Heroes hottie Hayden Panettiere was in Washington DC to attend the Green Inaugural Ball. Apart from the clear miss of a must-have-a-date accessory for the night, Hayden looked absolutely gorgeous in a mini black and blue strapless dress.

I swear I have no clue how she keeps that dress from falling off it seems to be dangerously low and in risk of giving the biggest boob slip in Hollywood's history (not for the size of her puppies but by the extreme low cut of the dress. If it falls she will be like naked!!). And where is Milo Ventimiglia?? He would be like the most wonderful fashion accessory at the Ball and Hayden wouldn't need to be in such pain by wearing those huge but fabulous high heels!