The world just got a whole lot more beautiful, as Angelina Jolie and Brad Pitt welcomed their twins over the weekend. Knox Leon and Vivienne Marcheline, each weighing approximately 5 lbs., were born Saturday night in a hospital in Nice, France, Dr. Michel Sussman told reporters outside the hospital that the labor and delivery went very well. “It was an epidural, so [Angelina] was speaking and laughing. They were happy.” He went on to say that Pitt was very emotional during the birth and never left Jolie’s side, even cutting the babies umbilical cords. “He was my assistant! He was….perfectly calm, totally determined, very pleased to be at the birth of his children, very moved.” he said. The new Jolie-Pitt children were made honorary citizens of Nice, where the whole family has been living since spring. Knox and Vivienne join brothers Maddox, 6; Pax, 4; and sisters Zahara, 3; and Shiloh, 2. At left, the Mayor of Nice shows the birth certificate of one of the twins.