Hilary Duff was spotted on the “Gossip Girl” set yesterday looking really good wearing Christian Louboutin ‘Bianca’ pumps with a Marchesa Spring 2009 gold dress draped with a black chiffon overlay.

You may remember that this dress has been worn on the red carpet by Miley Cyrus and Georgina Chapman.

Hilary Duff’s “Gossip Girl” character is called Olivia Burke. Olivia is a movie star who enrolls at NYU in search of a traditional college experience. She ends up rooming with Vanessa (Jessica Szohr).

It seems like even though Duff’s character is a movie star, they’ve given her a very laid back casual look including Siwy distressed jeans and a Kain Label pocket tee.

Duff has been seen on set carrying a Valentino bag, but in these pictures she’s carrying a Givenchy chain belt maxi nightingale bag which has just shot to no.1 on my wish list.

Duff will debut in the fourth episode of season 3, slated to air October 5 in the US.

Leighton Meester, Taylor Momsen, Jessica Szohr and Blake Lively’s looks from yesterday will follow.

Credit: Style.com & PacificCoastNews