Kim Kardashian’s eldest daughter North West teamed up with Sia for a festive duet at the Kardashian’s extravagant Christmas party, and nope, we didn’t have this on our bingo sheet either.

The nine-year-old oozed confidence as she showed off her signing abilities, with her mum Kim, 42, recording all the action and sharing it on her Instagram stories.

North joined Sia inside a giant box where the pair performed the Australian singer’s track Snowman, which was released in 2017.

The duo was dressed in extravagant outfits for their brilliant rendition, with Sia, 47, rocking an elaborate white dress and youngster North wearing a silver top and matching trousers.

The Kardashians had been getting into the Christmas party spirit at their annual festive bash, this time hosted by Kourtney Kardashian and her husband Travis Barker.

North West joined Sia for a performance of her track Snowman (Picture: Instagram)

The pair performed the track from inside a huge box (Picture: Instagram)

Khloe Kardashian was among the first guests to arrive because she was ‘so excited’ and walked her followers through the no-expense-spared set up, which boasted of huge red Christmas trees and an abundance of fairy lights.

In her videos, Khloe, 28, showed off a plush ballroom decked out with tables laden with sweet treats, including gingerbread houses.

Sister Kylie Jenner, 25, was also in attendance and also uploaded videos of the glamorous event on her social media.

Kylie Jenner revealed a huge red ball pit on her Instagram story (Picture: Instagram)

No expense was spared on the lavish display of food (Picture: Instagram)

We know where we’d be hanging out if we’d been invited… (Picture: Instagram)

She shared a clip of her daughter, Stormi, playing in a huge red ball pit with a balloon arch hanging above it.

The Kardashians have long been known for their excessive Christmas parties.

The bashes used to be hosted by matriarch Kris Jenner, who had been throwing them ever since her children were young.

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We didn’t have this on our bingo sheet.