Kate Middleton and Prince William welcomed a baby boy today. The birth of the new heir was announced by Kensington Palace after more than 14 hours of labor. "Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 4.24 p.m.," the palace said in a statement. "The baby weighs 8 lbs. 6 oz. The Duke of Cambridge was present for the birth." Take a look at the celebrations welcoming the new royal prince.