During the third season, Conrad ended her friendship with Montag after she suspected that Montag and Pratt were responsible for rumors of a sex tape involving herself and her former boyfriend Jason Wahler; the ensuing feud carried through each subsequent season in which Conrad appeared. Conrad briefly dated fellow castmate Brody Jenner, which she commented had been subject to "editing to drag it out" during the series. In January 2007, Conrad was announced as the inaugural spokeswoman of Avon Products's "mark. " line, marketed towards young women; she was succeeded by actress Ashley Greene in June 2010. Later in 2007, Conrad appeared as a satirical version of herself in the comedy film Epic Movie. In 2008, Conrad and Port began employment with Kelly Cutrone's PR firm, People's Revolution. Conrad later made a cameo appearance in an episode of Greek and provided her voice for a cartoon version of herself in an episode of Family Guy. In March, she premiered her first fashion line The Lauren Conrad Collection. After underwhelming sales figures, Conrad ended the line the following year to further familiarize herself with the industry.