According to Ausiello at EW.com, Hilary Duff has join the cast of Gossip Girl for season three.
It’s unclear whether she’ll be a regular or just a temporary, recurring star. Duff will play Olivia, “a movie star who enrolls at NYU in search of a traditional college experience” and rooms with Vanessa (Jessica Szohr).
Thoughts on the casting?
Fun fact: Duff was reportedly considered for the role of Annie on 90210 but she passed on the project.
TeenDramaWhore 
i have mixed feelings about this one.,