It was Bradd pitt who cut the umbilical cords

Angelina Jolie laughed with joy as her newborn twins were delivered and partner Brad Pitt cut their umbilical cords, according to reports.

The couple, who welcomed son Knox Leon and daughter Vivienne Marcheline on Saturday, were together and "calm" during the delivery, with their doctor joking how Pitt "was my assistant."

The actress delivered her twins by Caesarian section at the Fondation Lenval hospital in Nice, France, and there were "absolutely no problems" with the birth.

Jolie's obstetrician, Dr Michael Sussman, tells People.com, "It was an epidural, so she was awake and speaking and laughing. They were happy.

"He (Pitt ) was ... perfectly calm, totally determined, very pleased to be at the birth of his children, very moved and very emotional."

And when asked how long Jolie was expected to stay in the hospital for, he said, "I don't know. She will stay for a few days. You know, in Europe it isn't like in the United States, where the patients go home after three days. They will stay a bit longer until everything is okay.

"The babies are fine. The babies are with the mother and father and they are fine."

The first pictures of the tots have reportedly been sold for $11 million to an as-yet-unnamed U.S. magazine. The couple intends to donate the money to charity.

Brad Pitt Flies to Italy for Radiohead

Hollywood actor Brad Pitt left his pregnant partner Angelina Jolie at home in France to jet to Italy to watch British rockers Radiohead with his pal Edward Norton.

The two actors--who met on the set of 1999 film Fight Club--were spotted enjoying the concert in Milan, Italy, on Wednesday evening.

The pair was joined by Pitt's friend Marianne Pearl, the woman played by Jolie in last year's A Mighty Heart.

Pitt was photographed laughing and joking with his friends and showing them pictures of his children on his camera phone, according to People.com.

Pitt and Jolie have three adopted children--Maddox, 6, Zahara, 2, and Pax, 4, from Vietnam--as well as their biological 2-year-old Shiloh. They are currently expecting twins.