VIDEO : Prince William and Kate Middleton Welcome Baby No. 2!

Life will never be the same for Prince-William/'> Prince William and Kate Middleton!
The Duke of Cambridge, 32, and the Duchess of Cambridge, 33, welcomed a daughter Saturday, who joins big brother Prince George, 21 months. Whether the couple has discussed the possibility of having a third child is anyone's guess, but for now, they're happy to be a family of four. The Cambridges are in good company, as many of the world's most famous families have four members, too.??