TikToker Buys Blair Waldorf's Gossip Girl Marc Jacobs Dress for White Party ttF Fashion Diary: Blair Waldorf War Sydne Style SOLD) Listing this dress during fashion week could not be more appropriate! This Ralph Lauren Collection purple label look is from the brand's Spring 2008 runway collection, which was first unveiled to Party Dress Outfits Inspired by Blair Waldorf and Serena van der Woodsen on Gossip Girl Glamour Party Dress Outfits Inspired by Blair Waldorf and Serena van der Woodsen on Gossip Girl Glamour