“Lizzie McGuire” star Hillary Duff is set to join the cast of “Gossip Girl” for a multi-episode arc, according to EW.com.

According to reports, Duff will play Olivia Burk, a movie star enrolled in New York University to get the college experience. She ends up rooming with Vanessa (played by Jessica Szohr) at NYU, the same University attended by characters Blair (Leighton Meester) and Dan (Penn Badgley).

In December, Duff said to E! News she’d become a fan of the show, adding that her favourite character was Chuck Bass. “I don’t know why, because he’s so bad and terrible,” she said. “He is so sad that I feel bad for him,” she admitted.

The former Disney star was developing “Barely Legal,” her own pilot for NBC, but after the network passed on her comedy pilot, “Gossip Girl” producers found a spot for her on the show.

Expect to see Duff spreading rumours on the show during the season’s fourth episode which is slated to air on Oct. 5.

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The “Gossip” just got a lot juicier.

According to the New York Daily News, “Gossip Girl” romantic leads Penn Badgley and Blake Lively are a real-life couple.

The pair have dodged these rumours before, as Lively was in a long-term relationship with model/actor Kelly Blatz.

However, the newspaper stands behind their source, who reported, “No one is really supposed to know that [Badgley and Lively are dating]. I was told by a friend of the family.”

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