Most Expensive Home Ever in California

It's nice to have options ... and that's exactly why Jay-Z and Beyoncé are going to hold on to their $100 million Bel-Air mansion, despite just shelling out $200 million in a historic purchase. Sources close to the couple tell TMZ, as crazy as it sounds ... the brand new Malibu pad will serve as a weekend home -- in a sense -- at least for the time being.