Los Angeles, California - Khloé Kardashian put the wild in Wild West at her country-themed 40th birthday bash alongside her sisters!

After turning the big 4-0 on Thursday, the reality star celebrated her birthday with her family and friends at the "Khloé Saloon" on Saturday night.

The Kar-Jenners, including Kim, Kourtney, and Kylie, were dripping in diamonds and denim at the party, and Khloé gave fans a peek into her getting-ready process with a transition video on Instagram.

The clip began with KoKo getting her glam done in a silky blue top before her makeup artist put her brush to the camera, making way for the transition to Khloé's complete look.

The Good American mogul wore a denim corset top with matching distressed jeans and a denim cowboy hat, all of which featured diamond adornments. The post also confirmed that the birthday party was being filmed for an upcoming episode of The Kardashians with a shot of the camera crew in Khloé's room.

Older sister Kim gave her POV of the party on her IG page, sharing a look inside the bash and revealing her ensemble for the big night.

Kim may have looked like she was wearing denim, but up close, the fabric of her light-blue corset and matching pants actually appears to be suede.

Like the birthday girl, the 43-year-old completed her outfit with plenty of bling, including a large cross necklace.

Unsurprisingly, Kourtney twinned with her hubby, Travis Barker, in denim button-downs. The eldest Kardashian gushed over the night on her page and also shared a snap of herself with Khloé and their mutual pal Nicole Williams English.

Kylie didn't post anything on her account, but she was spotted in a video shared by Khloé as she danced to Drake's hit One Dance while rocking a dark-wash denim minidress.

Prior to the birthday bash, the Revenge Body star received a flood of heartfelt tributes, including a message from Kim, proving that the nasty feud playing out on The Kardashians right now has since been resolved!

The mom of two also got a sweet shoutout from her ex, Tristan Thompson, who called her his "best friend" in a heartfelt Instagram message.