Mariah Carey is getting real about keeping co-parenting "fair." The Obsessed singer made a rare move earlier this week: she opened up a bit about her co-parenting dynamic with ex-husband Nick Cannon! During an interview with Harper's Bazaar published on Monday, the 56-year-old detailed how she and the Wild 'n Out host split twins Moroccan and Monroe's time: "How do I say this? They spend time with him, and they have a good time. They spend time with me, and they have a good time.