He knew his letters and their sounds. He could count up to 20, and identify his shapes and colors. He was a whiz on the iPad.. Nick Cannon denies trying to stall Mariah Carey divorce and wants her to be 'happy'The star says he just wants her to be "happy" and hit out at reports he has declined to sign paperwork to make the split official16:58, 9 JUN 2016Updated17:03, 9 JUN 2016Nick Cannon and Mariah Carey (Photo: Splash News / Getty Images) Get celebs updates directly to your inbox+ SubscribeThank you for subscribing!Could not subscribe, try again laterInvalid EmailNick Cannon insists he just wants Mariah Carey to be "happy" and denied reports he is holding up the divorce case.The America's Got Talent host split from the Hero singer who whom he has twins Moroccan and Monroe, five in August 2014 and he filed for divorce later that year.Though they struck a property settlement and agreed to joint custody of their twins in December 2014, it was recently cla