Watch Mariah Carey's Magical Christmas Special (2020) HD Full Movie Free on SolarMovie. Watch Mariah Carey's Magical Christmas Special (2020) online free. When the world is faced with a holiday cheer crisis, the North Pole knows only one person who can so...When the world is faced with a holiday cheer crisis, the North Pole knows only one person who can solve it: Santa's great friend, Mariah Carey.