It's no secret that Mariah Carey loves the holidays, and now the pop star has posted photos of herself on the set of her 'When Christmas Comes' video, along with a very special friend.

The images, which the singer posted on her official Twitter page, show Carey and the iconic character Snoopy frolicking in the snow. The two are holding hands and smiling (at least we think Snoopy is), while taking in the winter wonderland.

Carey wrote from the Los Angeles set, "Being silly with Snoopy, the guest star in my new video 'When Christmas Comes' with John Legend!" Later, she added, "Another one with Snoopy! still can't believe we made it snow in L.A. : )."

While the shoot was for the R&B diva's holiday song with Legend, Carey failed to tweet on-set pics of her 32-year-old collaborator. As a consolation prize, fans can watch him in the duo's just-released music video, which incorporates home movie footage and clips from 'A Charlie Brown Christmas.'

'When Christmas Comes' originally appeared on Carey's 2010 album 'Merry Christmas II You,' but has not seen a music video until now. The song was officially released as a single on Nov. 21 of this year.

Watch the Mariah Carey 'When Christmas Comes' Video Feat. John Legend