It's time for a fashion update on one of my favorite tv-shows at the moment, Gossip Girl! Currently the cast is in Paris shooting season 4. Model Lou Doillon is said to make an appearance on the show this fall and the one and only Karl Lagerfeld (!) is rumored to star as well! We'll just have to wait and see.. In the meantime, let's take a look at some of the fashionable outfits Blair Waldorf (Leighton Meester), Serena van der Woodsen (Blake Lively) and Chuck Bass (Ed Westwick) are going to wear in season 4. Enjoy the pics!