Beyoncé‘s birthday was back on Sept. 4, but the singer celebrated her B’Day on Saturday night with a 41st birthday bash. 

 The party saw Beyoncé indulging in a disco theme — an appropriate choice.

 Inviting some of her A-list friends to the event, which included Kim and Khloé Kardashian.

Kim shared photos of her dazzling ensemble via Instagram.

The SKIMS founder donned a glittering red-and-black zebra-print bodysuit with a pair of matching heels,

 Accessorizing the look with a mini Balenciaga bag and sunglasses, both in black. 

 Other photos in the carousel show Kim and Khloé posing for black-and-white photo booth pics alongside friend La La Anthony.

Meanwhile, Khloé shared a snap of her wearing head-to-toe silver sparkles in the form of a long-sleeve top.

 Skirt, boots and mini Balenciaga bag alongside Kim and Anthony before heading out to the star-studded event.