The Westlife star was joined by his jungle campmate Rebecca Adlington on the Christmas special of the show last night, and together they raised much-needed funds for their chosen charities.
In one picture that Kian posted to Twitter, he is posing alongside Rebecca and Loose Woman Carol Voderman - who also starred on the show with Caroline Quentin.
The trio are sat on a sofa behind the scenes and are surrounded by beautifully decorated Christmas trees.
Kian also shared a great snap of himself and Who Wants To Be A Millionaire? presenter Chris Tarrant.
We have to say, we're pretty impressed with Chris' choice of knitwear last night. Very festive!
Earlier this year, Chris confirmed that he was quitting Who Wants To Be A Millionaire? after 15 years on the show.
Last night's episode was the last ever live show, however several pre-recorded celebrity specials will air in early 2014.
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