Leighton Meester Hosts a Fashion-Forward Bash in N.Y.C.

Landov

10/27/2011 AT 5:55 AM ET

Leighton Meester hosted a party in the Big Apple for Music Unites and Roger Vivier’s new fall-winter collection. The Gossip Girl star was an a “delightful mood,” an onlooker says, as she snapped pictures with partygoers. “She was a fantastic hostess.” Alexandra Richards deejayed the bash and guests sipped champagne and nibbled on beef tartar, caviar and glitter-coated macaroons. – Jessica Wedemeyer

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