Angelina Jolie and Brad Pitt treated their twins to an ice skating birthday party. The couple's youngest children, Knox and Vivienne, turned seven on Sunday and enjoyed a weekend of fun to mark the milestone. The youngsters visited Toys 'R' Us on Friday to pick out some new toys, before picking up lunch from a nearby branch of Subway and heading back to their Los Angeles home to play with their new purchases. According to TMZ, Brad and Angelina spent $44 in Subway and left a $6 tip for their food. Then on Sunday, the twins were joined by their famous parents, siblings and a group of friends to take a trip to Iceland Ice Skating Center in Los Angeles suburb.
