Gossip Girl actresses Blake Lively and Leighton Meester both attended the exciting Mercedes-Benz Fashion Week Spring 2009 festivities Sunday evening.

Leighton attended Calvin Klein’s 40th Anniversary bash, while Blake chose to attend the Miss Sixty show. Both certainly donned some interesting clothes!

Here's a look at Blake and Leighton's fashion choices ...

Which Gossip Girl star's outfit do you like more?

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