The 45-year-old "Hero" hitmaker - who got engaged to the billionaire businessman in January - has been keeping details of their upcoming nuptials secret, but the producers of the show are keen for them to include their ceremony on the eight-part docu-series, which is expected to be shown later this year, reported Us Weekly.
"Her team wants it on the show. Her manager is a reality TV producer and got her the deal," a source said.
Carey has four-year-old twins Moroccan and Monroe with her ex-husband Nick Cannon.