In scenes yet to be aired, the group will be seen going on an Arctic expedition into the bedroom and some of the stars have been chosen to take on the role of husky dogs, who will pull the rest along on a sled.
Chart-topper Dappy appeared to be embracing his fun canine costume and even added his black snapback cap and a pair of sunglasses to the look, giving it an N-Dubz edge.
And if that wasn't enough, he then decided to rename the four huskies the "Swagger Dogs"!
Meanwhile, Casey couldn't resist helping on-off love interest Lee get prepared for the task and was caught painting his face for him before they headed outside to join the others, who were all dressed in huge winter coats.
The brunette model's confusing whirlwind romance with Lee has been met with plenty of diverse reactions from viewers, with some claiming that she may be milking her role as a victim in Lee's love triangle, which also included former contestant Jasmine Waltz.
And now in a surprising new twist, it has been revealed that Casey may in fact have had a relationship blossoming on the outside, as shereportedly enjoyed dates with Black Eyed Peas' will.i.am. (He hasn't commented).
But are we yet to see more puppy love between her and fellow husky Lee?
The twosome, plus Dappy and Luisa will be partaking in a slush shot challenge, as well as dressing up as huskies this week.
They will have to answer trivia questions in an ice cave and drink shots of slush that correspond to their answers.
We can't wait to watch!
Celebrity Big Brother airs nightly on Channel 5.
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