WATCH: Mariah Carey Performs “O Come All Ye Faithful” with her Mom

The holidays are the perfect time of year to get together with your loved ones — and if you’re Mariah Carey—to perform a sensational duet with your mother.

Last night, during Mimi's Christmas Special, Mariah Carey: Merry Christmas to You, the pop diva was joined on stage by her mother, Patricia Carey — who, if you didn't know, is an opera singer (Mariah had to get it from somewhere, right?). 

Check out their mother-daughter duet of the Christmas classic, “O Come All Ye Faithful," below.