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Kourtney Kardashian Had the Most Iconic 40th Birthday Party Of All Time

From the A-list guest list to the nude birthday cake, this might've been the best Kardashian-Jenner party to date...

Kourtney Kardashian has proved herself the most interesting to host a party with her incredible 40th birthday party last night.

The eldest sibliing of the Kardashian-Jenner clan celebrated the milestone birthday in true Kourtney style: an A-list guest list (duh), superstar performers,her own iconic KUWTK moments as decor, and the most extra birthday cake we've ever seen.

While the birthday girl was busy being the star of the show, sisters Kim and Khloe shared snippets of the night for fans to see on their Instagram Stories. (Question: did they ruin Kourtney's outfit reveal? Drama!)

The whole fam was in attendance, with Kendall and Kylie Jenner also posting from the night, with many of their mutual friends attending, including French Montana, Harry Hudson, Paris Hilton andLuka Sabbat.

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Instagram @kimkardashian

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Kourtney wore a sleeveless, floor-length mesh dress - with strategicpaneling protecting her modesty - to hersoirée, where Sia and Robin Thicke serenaded her with a very special rendition of 'Happy Birthday'.

From what we've seen so far her brother-in-law Kanye West didn't take the mic but he very well could have at some point as his past collaborators Quavo and French Montana were also partying with the whole crew.

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Instagram @kimkardashian

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Everyone secretly has their favourite Kardashian-Jenner but there's almost a universal acknowledgment that Kourtney is the funniest sister and she reminded everyone exactly why that is with her extra AF decorations and extravagant birthday cake.

The cake (pictured above, in case you didn't realsie that it's a'cake'(!)) is essentially an ediblesculpture of her sitting nude on the edge of a bath tub, which is what we'd hope for from Kourtney. No Victoria sponge could compare.

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Instagram @kimkardashian

Kim Kardashian sharing photos and videos from Kourtney Kardashian's 40th birthday party on Instagram Stories, with Sia, Robin Thicke, Kanye West, Quavo and more

Besides the cake, the napkins were emblazoned with "Kim, there are people that are dying" and gifted champagne bottles looked like awards,engraved with her face and "Most Interesting to Look At". Honestly? We could not stan this woman more.

Kourtney hasn't yet posted any photos of her outfit on the 'gram herself so we'll be spending all of today refreshing her page waiting for the sure-to-be equally iconic photos to roll in...

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