Even though Paris Hilton and Nicole Richie still are at odds with each other in "real life," Fox expects to have both socialites on board for a fourth edition of The Simple Life. "Both have been picked up; both will be ready for work, and we'll work with it," declares Fox Entertainment boss Peter Liguori. What he means to say is, "We will make every effort to get lots of catfights on camera, and always have a pit of mud nearby."