Fashion-loving "Gossip Girl" fans will be treated to a superfecta of guest stars tonight as Hilary Duff and Tyra Banks as well as designers Tory Burch and Georgina Chapman (of Marchesa) take to the small screen in this evening's episode.

Though the plot lines remain mum, the trailer hints at a swishy awards ceremony that must (we're guessing) require the assistance of the industry's finest.

Could it be that Serena will be wearing a Marchesa frock from the fall collection? Or will Tory be dressing Blair?

Check back tomorrow to get the play-by-play recap!