The fabulous hair and beauty spectacle that was Gossip Girl has officially ended (sob). Over the years, we've been treated to more hairbands and fancy up dos than you can poke a stick at, courtesy of characters Blair Waldorf and Serena van der Woodsen. But we were just as enamoured with what their offscreen counterparts, Leighton Meester and Blake Lively, were doing with their locks — not to mention the dramatic styles their co-stars Taylor Momsen and Jessica Szohr pulled off. We've already taken a look at how the boys in Gossip Girl grew up, hair-wise — now it's time to see how Taylor, Jessica, Leighton and Blake have changed over the years. Click through to check it out!