Are you guys thinking of a theme for your family portrait this Christmas? Please cross out 'Game of Thrones' in your list because the Blackstocks has already slayed this theme.

Kelly Clarkson and his hubby Brandon Blackstock posed with their daughter River, step-daughter Savannah and step-son Seth. The family kept it serious, except for River who's flashing a huge smile on the camera. They used a garden with what looks like an abandoned castle on the backdrop. Check out the picture posted in Clarkson's Instagram, saying, "Merry Christmas from the Blackstock clan! @GameOfThrones #gameofthrones #winteriscoming #riverisnotworried ."

They added the popular slogan from "Game Of Thrones", saying, 'Winter is coming." Considering that Clarkson is pregnant for their second child, people have been guessing that 'Winter' seems to be the name of their baby boy on the way, but people just speculated it.

Clarkson announced her second pregnancy in one of her concert in Staples Center in Los Angeles last August. She told the crowd, "This is not how I wanted to announce [that I'm pregnant]. My makeup artist is backstage hating me. I didn't want you to think I'm on pills or something. I would like to apologize to my husband. This was not planned. I'm just so hormonal. Everything is great, I haven't vomited yet. That's a win y'all."

She cancelled the rest of the "Piece by Piece" tour dates in Canada and in UK a month after by announcing in her website. “I am truly sorry that I have to cancel the remainder of my tour dates. I was so looking forward to sharing this tour with all my amazing fans in Canada and the UK. Unfortunately my doctor is telling me I have to stay on vocal rest, but I am working hard to get better as fast as possible.”

She also revealed that she's having a boy in Instagram. “In other news, River’s gonna have a little baby brother :) #itsaboy We're so excited!"