Kate turned 40 years old on April 19th. After vacillating whether or not to do a birthday party for—hmm—about six months, that morning she finally relented and let her friends take over her house, install a pizza oven and tequila bar, and celebrate her big 4-0. It was spontaneous and bohemian and fun and fabulous, just like the birthday girl. And everyone had a finger-licking good time, just like her mom, Goldie, who told everyone that she always knew her daughter would be a mogul.