LOS ANGELES, CA  [Friday Oct.19.2007]  /Mix103FM.com/ -- Josh Hartnett wasn't sure how to address the subject of Rihanna during his Thursday appearance on "The Morning Show With Mike and Juliet." When the hosts asked him about rumors that he's dating her, he smiled and stuttering heavily. "No, no, come on, you guys," he said. "We weren't supposed to talk about these sort of things, were we? I thought we were going to come out here and talk about the movie. ... I can't really respond to things like that, because if I start responding to them, then everybody wants a response on everything."

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