Leighton Meester is 'Lovestruck'

ET was behind the scenes with Gossip Girl star Leighton Meester as she filmed her sexy new commercial for Vera Wang's latest fragrance "Lovestruck."

Meester looked gorgeous in a maroon gown custom-made by Vera Wang herself, as she filmed on a New York City fire escape with equally gorgeous model Tommy Dunn.

"The concept is really cool, it's like a modern day Romeo and Juliet and it's very much about that rush you feel when you're lovestruck, so that definitely speaks to me," Meester says about the super stylish video.

Clearly, the 25-year-old is ecstatic about being chosen to represent the celebrity designer's newest fragrance, placing her squarely amongst Hollywood's high fashion elite.

"It's really an honor to be picked by this campaign," she says. "I admire Vera so much ... she really has a great eye for what women want and her style is so iconic and classic yet modern, so I think it speaks to women of all ages, myself included, so I'm really excited about it."

Check out the video for a behind the scenes look at Wang and Meester's hot new take on the classic love story.

Vera Wang's Lovestruck is available at Macy's.