The PYTs from Gossip Girl are really taking advantage of their newfound fame and open invitation to fancy parties. Blake and Leighton (S and B, respectively) were at Saturday night's launch of Tiffany's 2008 Blue Book Collection at the Museum of Natural History in NYC. Something about Leighton looks different (older), but obviously these girls look adorable in any dress and especially great up against that Tiffany blue. Also at the soirée was Jennifer Hudson who dressed metallic like the jewelry they were there to celebrate. Speaking of that, you think those big red (black) carpet smiles are because the ladies know they were about to score a goody bag from the new line?
To see more of the party including Blake, Leighton, Diana Ross and Jennifer just
Images include Blake Lively, Diana Ross, Jennifer Hudson, Leighton Meester, Janine Turner, Michael Kawalski