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Why so sad???

A very dressed down Chace Crawford showed up at the premiere of Sisterhood of the Traveling Pants 2 in NYC on Monday night.

The actor failed to crack a smile on the red carpet, except for when his Gossip Girl co-star (and one of the leads in the film) Blake Lively came to pose with him.

Our spies tell us, though, that Chace’s mood seemed much chipper at the after-party, though.

“He was hitting on everybody,” an insider tells us.

Well, anybody without a dick.

Crawford was all about the ladies last night. Sigh.

[Pic via Getty Images.]

Original post by Perez Hilton