Mariah Carey‘s upcoming Christmas-themed TV special, narrated by Tiffany Haddish – watch it below.Mariah Carey’s Magical Christmas Special will premiere on AppleTV+ on December 4, and include musical performances and guest appearances from Ariana Grande, Jennifer Hudson and Snoop Dogg.The new trailer, narrated by Haddish, explains the backdrop of 2020, and how a slice of Christmas cheer from Carey is more important now than ever.Watch the trailer below.A synopsis for the show reads: “Carey has