Watch this clip from last night's "Age of Dissonance" episode. Then rate the costumes in the play.

After what seemed like an eternity, Gossip Girl finally returned last night with a brand-new episode. The Upper East Siders starred in a high school production of Edith Wharton's novel The Age of Innocence. Innocent they certainly are not. But high-society fashionistas they most definitely are.

The series casts little Jenny Humphrey (Taylor Momsen) as the play's costume designer. But in actuality, Blair and Serena are both outfitted in Marchesa. Yeah, that's what we wore when we were 18.

Blair, as Countess Ellen Olenska, wins this fashion face-off for us. The embellished shoulders and brooch accessory are very on trend. Serena, as May Welland, was disappointing. The feathers and messy hair were too Mischa Barton. Who did you think looked better? Vote below!

Now that you've voted, check out this hilarious article comparing Gossip Girl to Wharton's original novel.