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, Cannon has repeatedly declined to sign the paperwork to make the divorce official, and, won't give reasons for his hesitation, reported TMZ.
Sources have said the 35-year-old star still loves Carey and doesn't officially want to let her go, nor is he keen for her to tie the knot with billionaire fiance James Packer.