Blazer, meet black unitard.

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After a few hot pink looks, Kim Kardashian is back to the all-black look, but this time she gave it a little business-y treatment.

Ahead of her 41st birthday, Kim stepped out wearing an all-black ensemble, which included a black leather blazer, a black turtleneck, and black leather boot leggings. The Skims founder accessorized with a black baseball cap, black rectangular sunglasses, and — you guessed it — a black fuzzy purse.

Kim Kardashian West
Kim Kardashian West
| Credit: Backgrid

The Kardashian krew has a lot to celebrate as of late. From Kourtney Kardashian and Travis Barker's highly publicized engagement to Kim's 41st birthday, which is today (happy birthday, Kim!)

Much like everything else they do, the family is celebrating by posting to social media. The reality star's momager Kris Jenner posted the sweetest throwback photos of the mother-daughter duo .

"Happy Birthday to my beautiful daughter @kimkardashian!!!!" Jenner wrote alongside the array of throwbacks mixed in with some more current day snaps. "I can hardly believe how fast time flies by! You are in the prime of your life with four gorgeous children and living your best life!! Your life is so full of the amazing things that you love to do, especially for your family, your kids, and for others who don't even know that you were helping them."