AEST 00:00, Fri Jul 13 2012
It’s certainly a busy time for the Jolie-Pitts!
Apart from Brad Pitt and Angelina Jolie preparing for their secret wedding, the pair’s youngest children, twins Vivienne and Knox are celebrating their fourth birthday!
Proud mum Ange told Marie Claire magazine all about the pair, who were born on July 12, and their personalities.
Ange explained that Vivienne is a "girlie girl" and likes getting "her nails done and stuffed animals". Knox on the other hand "is very much a dude…he loves dinosaurs and swords".
Take a look at our gallery of Vivienne and Know throughout the years.
Vivienne and Knox turned four on July 12.