Gossip Girl guest star Michelle Trachtenberg is said to only talk about herself when discussing the show, and when she's quizzed on her other castmates, she changes the subject. [P6] Page Six put a call in to her publicist Jessica Kolstad to see if it's true. Kolstad replied: "I don't know how you live with yourself." Brilliant. [Photo: WENN]

If it weren't for parties at a Theory store, we might be left wondering whether Chace Crawford really is dating Michelle Trachtenberg. After all, they were spotted "flirting heavily" at Upstairs, so they must be banging each other, right?

Let's get Michelle on the record about this matter: "I mean, did you not just hear me? I don't talk about tabloid bullshit, and Chace is a co-worker of mine, so … Tabloids make up crazy shit, and I don't have to play into it." There you have it — they're totally together!

From blogs! Down By The Hipster spotted Gossip Girl's Chace and Michelle Trachtenberg at Soho's Upstairs. [Earlier]

Chace Crawford's camp moves fast to plant an item that he's now enjoying a fling with new Gossip Girl castmate Michelle Trachtenberg, a rebound tryst following his heartbreaking split with Carrie Underwood — a relationship she pretty much denies ever having. But don't get jealous, JC Chasez; it's the same melancholy ploy as before. What one spy refers to as Chace and Michelle "flirting heavily" could easily be mistaken as the oldest in fag-hag conversation: "OMG this Cosmo is sooooo good!" "I know!!!@!%!@!"

Buffy the Vampire Slayer alum Michelle Trachtenberg on the set of Gossip Girl yesterday, where she'll play Georgina Sparks, a society lass who recently left rehab. This is so the Lindsay Lohan-Dori Cooperma story.

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