Sophie Monk is out promoting a new line of shaping underwear called Hollywood Fashion Shapes from the makers of Hollywood Fashion Tape (it rhymes -- get it?). But, in case posing with the undies on her head (seriously -- check the gallery) or being photographed with women wearing nothing but the shapewear wasn't getting enough attention, Sophie decided to start a feud with someone who definitely knows how to garner coverage -- Paris Hilton.

On a morning radio show, Sophie, who is working on a reality show called Bigger Than Paris, said, "I don't know why she hates me, if she does, but I don't hate her." One possible reason for the feud (you know, aside from the name of her new show)? Sophie is the former fiancee of Paris' current boy toy, Benji Madden.

The former Aussie pop star goes on to say, "I hear it from the press," which surprises us, because we don't. "I don't know where it's coming from, but that's cool, she can hate me if she wants."