Two is too few when it comes to children in Tinseltown families. Though the national average of offspring is still close to two per household, leave it to Hollywood to do things bigger! According to a new study, more than a quarter of all births in 2007 were women having their third or fourth children. Some experts attribute the increase to mothers basking in the attention of pregnancy, but we think celebmamas get their fill of the limelight on the red carpet. Perhaps stars like Angelina Jolie and Heidi Klum just understand the importance of siblings! Check out other famous mothers and fathers that enjoy being a party of five, six, seven, 10, or 20!