Dem babies are growing up fast! 2011 was indeed a big year for Mariah Carey and Nick Cannon, who welcomed twins Moroccan and Monroe, now 8 months, in April after a lengthy struggle to conceive. Now, as the year draws to a close, the couple is highlighting their kids' first year with a series of new holiday-themed photos, posted on their family's photo album website, DemBabies.

In one snapshot, captioned "Monroe & Moroccan's First Christmas," Carey, 41, and her daughter pose with Santa Claus, while Moroccan (nicknamed "Roc") is all smiles in a pumpkin outfit. "My family gives me everything," Cannon, 31, told Barbara Walters in an interview earlier this year. Unconditional love means...the world to me. I mean, it's completion.""It's just love," added Carey. "It's a beautiful place to be."