Mariah Carey's twins Monroe and Moroccan sing backup for their famous mother on her new nativity Christmas song, "The Star".
The 47-year-old songstress tones down her vocals on "The Star", which is featured in a new Sony Pictures Animation movie of the same name.
Mariah, famous for her holiday hit "All I Want For Christmas Is You," enlisted her little helpers, six-year-old Monroe and Moroccan, to sing the chorus: "Follow your heart, it's Christmas."
The twins sing the chorus after their mother croons "Follow that star above you/ Should the world try to break you down/ There is one who waits for you/ Though you can't see Him now/ Thunder and rain surrounds you/ But His love's just a breath away."
Mariah revealed the twins' music debut by posting a picture on social media of her twins in their pajamas, captioning it: “Hanging with my two best friends, listening to their guest appearance on #TheStar”.
The Star movie follows the adventures of a donkey named Bo as he becomes an unlikely hero during the first Christmas in the film, which features the voices of actors including Steven Yeun, Kristin Chenoweth, Zachary Levi, Gina Rodriguez, Tyler Perry, Keegan-Michael Key, and Ving Rhames.
The soundtrack, in stores Oct. 27, also features Zara Larsson, Pentatonix, and Fifth Harmony, who will be contributing new song "Can You See".