Blair Waldorf (Leighton Meester) and Serena van der Woodsen’s (Blake Lively) fashion choices throughout Gossip Girl’s six seasons were just as fascinating as the never-ending drama and scheming. So, to celebrate tonight’s series finale, let’s take a look back at our two favorite Upper East Sider’s best outfits from the first season to the last, from Serena’s enviable prep school style and gorgeous gowns to Blair’s feminine looks and fashionable headwear. Click through the gallery to see all of their looks from every episode of Gossip Girl, and tune in to see the series finale on The CW at 8/7c.

GG Fashion Credits

• Last Week’s Fashion Credits!
Watch a Gossip Girl Series Finale Sneak Peek!
• Jennifer Behr’s Blair Waldorf Headbands
Eric Daman on Gossip Girl‘s Most Memorable Looks