Fergie and Josh Duhamel's new baby boy is already stirring up trouble -- for their dog! Ferg's calling in an expert to prep the pooch for the baby. Is this really necessary? A celebrity dog trainer tells us -- and we pull off a test. Plus, Justin Bieber doing something we haven't seen in a long time -- totally opening up to paparazzi ... and sounding almost desperate to answer questions! Why the big change?