Friendly exes Nick Cannon and Mariah Carey are back together again, with their kids, of course. The 35-year-old America's Got Talent host posted on his Instagram page on Friday, a week before Christmas, a photo showing himself in a candy-themed eatery with the 45-year-old pop star and 4-year-old twins Monroe and Moroccan, as well as Cannon's mother. And speaking of candy, the twins have gotten plenty of it recently.