Yes, it's true. Mariah Carey won't want anything to do with Nick Cannon this upcoming Christmas.

Their divorce is now official, according to sources close to both parties (and TMZ).

It's uncertain just what caused Mariah and Nick to divorce in the first place, but their reps claim the two have been living in different places in NYC since at least May. So sad.

Nick also apparently only gets to see the kids - With hardly any contact with Mariah herself.

Watch the video below for more details.