Three weeks after the birth of Brad Pitt and Angelina Jolie's twins, Knox Leon and Vivienne Marcheline, HELLO! and PEOPLE reveal exclusive views of their family of eight.

First photos of Brad and Angelina's twins , Vivienne & Knox Jolie-Pitt

The couple reveal in an exclusive interview how they and their four older children, Maddox, 7, Pax, 4, Zahara, 3, and two-year-old Shiloh, are finding life since the twins’ arrival.

"It is chaos," laughs the Hollywood actress on life at the sprawling Chateau Miraval in Provence, "but we are managing it and having a wonderful time."

Doting dad Brad, meanwhile, confides: "Viv is proving to resemble Ange in spirit, attitude and physicality… And Knox, he's a bit of me."

Citing a "person involved in the negotiations," the Associated Press reported the publications shelled out $14 million for the photos - making them the most expensive celeb infant pictures ever.

The money from the photos snapped by Getty Images will go to a foundation created by Jolie and Pitt, the AP reported.

Jolie, 33, and Pitt, 44, forked over $8 million for their foundation in 2006, according to their federal tax filings. They supplied their joint foundation with over $4 million each. Half their contribution came from the sale of Shiloh's first photos.