The 21 year old is currently in New York City filming episodes as a guest star on the hit TV teen drama, in which she plays a movie star who enrols in a university with Vanessa, played by Jessica Szohr.
Rumours swirled that Duff had infuriated the show’s cast after refusing to leave her trailer as the others waited to film near Manhattan’s Gramercy Park neighbourhood, causing a massive delay in shooting.
A source claims, “No one could believe they would actually hold up taping for her. Nobody in the cast behaves like that.”
But a representative for the U.S. programme tells the New York Post’s gossip column Page Six the rumour is “absolutely not true”.