Mariah Carey has a special guest by her side for her upcoming ABC special, Mariah Carey: Merry Christmas to You: her mother, Patricia.

Wearing an elegant black dress, the singer will belt out Christmas songs from her new album, Merry Christmas II You, for the show, which is set to air Dec. 13 (9 p.m. ET). It was taped at Los Angeles's Orpheum Theater.

Carey, 41, will also have something to look forward to after the holiday season: The singer is expecting her first child with hubby Nick Cannon. – Sara Hammel