When Brad Pitt and Angelina Jolie hooked up in 2005, a few things happened. First of all, two of the most powerful people in Hollywood were now living under one roof. Secondly, the most famous love triangle of all time would provide tabloid fodder for years to come. And finally, their brood of six became the most famous -- and most followed -- family in the biz. Now, they're engaged! Keep clicking to see photo highlights of the Brangelina story from beginning to the present.