Very merry Mariah Carey keeps baby bump covered in a festive coat she films Christmas special

By DAILY MAIL REPORTER Festive spirit: Mariah Carey performed for the Rockefeller Centre's annual Christmas tree lighting ceremony in New York last night A radiant Mariah Carey embraced the festive season last night with a performance at the Rockefeller Centre in New York.The pregnant star kept her baby bump covered up as she took to the stage in a big red coat, which wore over a black top,