Sneak Peek: Gossip Girl On-Set Style

It's just days before the hit show returns, but we've got a sneak peek at all the outrageous designer fashion you can expect to see this season. By Andrea DeSimone

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SCHOOL TIME

Blake Lively adds a touch of California cool to her character Serena van der Woodsen's preppy plaid uniform with flat Loeffler Randall boots, a leather jacket and a Katherine Kwei handbag.