[Blake Lively and Kelly Rutherford on the set of "Gossip Girl" as Serena and Lily Van Der Woodsen, Brooklyn, August 11. Image via Splash.]
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@EasyEVG: I actually thought they were. I kept reading that the mom was played by an actress known for Melrose Place and I was wondering why they had to go so far back when she had just been on The OC!