Carey sings Xmas duet with mother

London: Singer Mariah Carey joined forces with her mother to perform a festive duet on a special Christmas TV show.

The pregnant star who was hosting "Mariah Carey: Merry Christmas To You" for US channel ABC at Los Angeles` Orpheum Theatre Monday night invited her mother Patricia Carey to join her on stage for a rendition of festive classic `O Come All Ye Faithful`, reports

Carey explained the song which features on her new album `Merry Christmas II You` is "very close" to the pair`s hearts.

"Please give a big hand to my very special guest. My mother, Patricia Carey, is here tonight. We`re going to do a song from the new album `Merry Christmas II You`. This is something that`s very close to both of our hearts," she said.

However, instead of assuming her usual place in the limelight, Carey was happy to take a backseat and allow her mother to sing lead vocals on the track, before going on to perform another duet with "American Idol" judge Randy Jackson later in the evening.