The 42-year-old 'Hero' hitmaker and her husband Nick Cannon have had double the reason to smile on April 30 since becoming parents to son Moroccan and daughter Monroe on their third anniversary in 2011.
They are now set to treat them like a little prince and princess with a special party next month, reported Daily Star.
Carey is refusing to give up all the details, but says it was easy to come up with the Disney idea having recently recorded 'Almost Home', the theme tune for 'Oz the Great and Powerful'.
The Disney party will be a departure from Carey and Cannon's romantic anniversary last year. The couple renewed their vows at the top of the Eiffel Tower during a family break in Paris, France.