As fans, we often follow the careers and personal lives of our favorite celebrities, but how well do we know their family lives? In "Celebrity Family Matters: How Many Kids Do They Have?" quiz, we'll test your knowledge of some of the biggest stars in Hollywood and how many children they have. From Beyoncé and Kim Kardashian's growing families to Tom Brady and Julia Roberts' smaller broods, this quiz will challenge your knowledge of celebrity family matters. Get ready to count up those kids!