HEIDI & SEAL
When Project Runway host, 38, and singer Seal, 48, announced on Jan. 22, 2012, that they were separating after seven years of marriage, even their closest friends were shocked. This was, after all, a couple who celebrated their PDA with lavishly elaborate Halloween parties and annual vow renewals. But as the parents of four explained in a joint statement: "[We] have grown apart. This is an amicable process and protecting the well-being of our children remains our top priority, especially during this time of transition."