Leighton Meester's Rosette: Supersized!

Leighton Meister strikes a pose at the 2009 Library Lions Benefit at the New York Public Library's Schwartzman Building on Monday (November 2) in New York City.

The 23-year-old Gossip Girl actress wore a gorgeous Prabal Gurung dress (with a huge rosette), Van Cleef & Arpels jewels as well as Roger Vivier shoes and bag. At the event, Leighton was accompanied by her co-star (and real-life boyfriend) Sebastian Stan as well as Jillian Demling, Vogue's Entertainment Editor.

Below is the official sneak peak of Leighton's music video for her debut single, 'Somebody to Love' featuring Robin Thicke. The full video will premiere next week!


Leighton Meester - 'Somebody To Love' Music Video Preview 10+ pictures inside of Leighton Meester's supersized rosette…