EXCLUSIVE: Katherine Heigl has a ball out shopping and visiting with her mother in Los Angeles and Pasadena, while some of the paparazzi have a pretty heated day while jockeying in to photographer her -- the contrast is pretty hilarious! Passersby are told that the actress being filmed is Jessica Simpson ... and are actually fooled.<br /><br />Wonder what she's looking for in her car, in the street ... oh no! Did Katherine lose her new, enormous wedding ring!?
