Kylie Jenner brought a touch of country flair to her sister Khloé Kardashian’s 40th birthday bash, held on Saturday, June 29. The saloon-themed party, inspired by Dolly Parton’s Dollywood, had a strict “denim and diamonds” dress code, and Kylie’s outfit certainly did not disappoint.

The Kylie Cosmetics founder, 26, opted for a head-to-toe Alexander Wang ensemble for the celebration in Los Angeles. She wore a $495 jean tube dress made of stretch denim, allowing her to comfortably participate in the night’s festivities, including riding a mechanical bull with her best friend Stassie Karanikolaou and dancing with her sister Kim Kardashian.

Kylie completed her look with a matching pair of $950 Alexander Wang slouch boots in washed denim. The stylish outfit was curated by her stylists, Alex and MacKenzie Grandquist.

The party was a family affair, with Kris Jenner, Kourtney Kardashian, and her husband Travis Barker all in attendance, dressed in denim looks. Celebrity guests such as Sara Foster and Kimora Lee Simmons enjoyed performances from rappers Snoop Dogg, Warren G, and Kurupt, adding to the evening’s excitement.

In a video posted to Instagram, Kylie and Stassie Karanikolaou are seen enjoying the party to the fullest. After dancing and riding the mechanical bull, the duo snuck off to indulge in pigs in a blanket and In-N-Out burgers, all while in full glam. “Best night ever ??,” Kylie captioned the video, which was liked by celebrities including Kathy Hilton and Chloe Bailey.

Kylie has a long-standing relationship with the Alexander Wang brand, having attended numerous fashion shows over the years. She also included the brand in her 21st birthday look in 2018, wearing a $6,000 black feather Alexander Wang headband that read “Party Animal” for a themed photo shoot.

Khloé’s birthday bash was a memorable celebration, filled with family, friends, and fun, and Kylie’s stylish outfit added a perfect touch of glamour to the denim and diamonds theme.