On the eve of her album release, “Access Hollywood” gives Mariah Carey’s lambs a preview of the festive video for “Oh Santa!” with the full coming tomorrow. The pregnant diva spreads holiday cheer in the retro clip for the first single from her Christmas album Merry Christmas II You.

Mariah will perform yuletide classics and material from her new project in a one-hour ABC special, “Mariah Carey: Merry Christmas to You,” being taped this month at L.A.’s Orpheum Theater and airing December 13 at 9 p.m. EST.