The Heartbreaker hitmaker has allegedly signed a seven-figure contract to replace busty model Kate Upton in the advertisements for Game of War: Fire Age and she will shoot a 30-second TV spot with Thor: The Dark World director Alan Taylor.

Carey's music will also feature in the commercial, according to

The Game of War free mobile app has become big business for developers at MAChine Zone since its launch in 2013 after reportedly raking in $1 million (£625,000) a day in in-game purchases.