Kylie Jenner wasn’t here for the paparazzi’s flashes Saturday night, but she made sure to handle it in true Kardashian-Jenner fashion, with style, confidence, and a little attitude. The beauty mogul was photographed flipping off photographers as she arrived at Kris Jenner’s 70th birthday celebration, proving once again that when it comes to commanding attention, no one does it quite like Kylie. The Kylie Cosmetics founder turned heads the moment she pulled up to the event, flashing her middle finger from inside her car as paparazzi swarmed to catch a glimpse.

Despite the cheeky gesture, insiders told TMZ Kylie wasn’t upset. She was just feeling sassy and having fun.

Dressed to the nines for the ultra-exclusive bash, Kylie looked radiant as she joined hundreds of Hollywood’s elite in celebrating her mom’s milestone birthday. The floor-length dress featured a halter neckline with a structured collar detail that wrapped around her neck, creating a sculptural silhouette. The form-fitting bodice cinched at her waist before cascading into a smooth, draped skirt that highlighted her curves.

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Adding a daring touch, the dress included bold side cutouts that accentuated her figure, giving the otherwise classic look a modern, high-fashion twist. She styled her hair in a soft updo with loose tendrils framing her face and kept her accessories minimal, letting the sleek, sculptural gown do all the talking.

The overall look captured Kylie’s signature mix of sophisticated glamour and confident attitude, making it one of the night’s most talked-about ensembles at Kris Jenner’s 70th birthday bash.

The celebration took place at Jeff Bezos and Lauren Sánchez’s $165 million Beverly Hills estate, which set the scene for a night of pure Old Hollywood glamour. And yes, the guest list was just as jaw-dropping as the venue.

For her big night, the birthday queen herself, Kris Jenner, stunned in a strapless crimson gown with ruffles and a dramatic train, paired with sheer black gloves and diamond drop earrings. “Kris looked stunning. It was a total Old Hollywood glam,” a source told PEOPLE. “Everyone was talking about how amazing she looked.”

Surprisingly, despite the Kardashian-Jenner family’s history of turning major milestones into television gold, the party was not filmed for Hulu’s The Kardashians.

“There were no TV cameras filming,” an insider shared. “It was just all about celebrating Kris. And it was everything you’d expect from Kris: over-the-top, glamorous, and full of love from her family. It was obvious that she had the best night.”

The event reportedly featured lavish décor, live music, and heartfelt speeches from Kris’s six children, Kim, Kourtney, Khloé, Kendall, Kylie, and Rob, each honoring the woman who made “momager” a household term.

Before the festivities, Kris’s children took to social media to shower her with love. But the post that caught fans’ attention came from Rob Kardashian, who made a rare return to Instagram after a yearlong hiatus to celebrate his mom’s milestone day.

“Happy 70th Birthday Mom,” Rob wrote alongside photos of Kris, including one of her holding his 8-year-old daughter, Dream Kardashian. “You mean the world to me and I love you so much my darling little princess.”

Fans will remember that Kris Jenner’s last milestone birthday, her 60th in 2015, was one for the books. Her six children went all out with a lavish “Great Gatsby”–inspired celebration that reportedly cost a staggering $2 million.

The over-the-top bash featured glamorous 1920s décor, sleek black-and-silver invitations, and a guest list packed with Hollywood royalty. Among those in attendance were Will and Jada Pinkett Smith, John Legendand Chrissy Teigen, Boy George, Melanie Griffith, Riccardo Tisci, Lisa Rinna, and Kim’s then-husband Kanye West.

Kris, channeling Old Hollywood opulence, stunned in a custom diamond headpiece by Lorraine Schwartz, while Kylie Jenner turned heads in a hand-embroidered Yousef Al-Jasmi gown adorned with over 400,000 crystals, a showstopping look that reportedly took 16 days to complete.