It’s no secret that Mariah Carey loves Christmas, and this holiday season, she’s sharing her Christmas spirit with others. The diva plays Santa’s helper on the December 12 episode of “Extreme Makeover: Home Edition,” where she jets to Pensacola, Fla., to surprise homeowner and fan Finis Gaston.

Mimi later sits down with the scholarship student, who put his dreams on hold to raise his nieces and nephews following the death of his mother. “Finis has been such a trooper, he has sacrificed so much. It was kind of like they were just surviving in the wilderness, and now, it’s like the beginning of a dream,” says the altruistic mom-to-be.

Watch Mariah spread a little holiday cheer this Sunday at 8 p.m. on ABC.

[E! Online]