More than a year after filing for divorce [1], Mariah Carey [2] and Nick Cannon have reunited to celebrate the holiday season with their children, 4-year-old twins Monroe and Moroccan Cannon. Nick shared all the fun in a slew of Instagram snaps on Friday night, which included tree-decorating, candy-apple-making, a "festive" family outing with Mariah, and a special appearance from grandma. Despite the fact that the two are exes, Mariah and Nick seem to remain quite close. In a revealing new interview [3], Nick talked about the kids' Christmas plans and called Mariah an "angel." They also celebrated Easter together [4] earlier this year and paired up again for Halloween [5]. Keep reading to see their latest fun, and then check out more family pictures, courtesy of Mariah [6].