Leighton Meester is a singer

Leighton Meester dons a gorgeous Cushnie et Ochs marble print dress at KIIS FM's Jingle Ball concert in Los Angeles

Leighton Meester dons a gorgeous Cushnie et Ochs marble print dress at KIIS FM's Jingle Ball concert in Los Angeles.

The 22-year-old Gossip Girl who plays the snooty Blair Waldorf on the show actress then hit the stage to perform her single "Somebody To Love" in Emilio Pucci leather shorts and her favorite strappy Opening Ceremony wedges.

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