Kylie Jenner Celebrates 29th Birthday With Lavish ‘Princess Kitty’ Party, Pink Latex Look and Gemstone-Covered Cake

Kylie Jenner is celebrating her 29th birthday in unmistakably glamorous fashion.

Ahead of her official birthday on Monday, August 10, the Kylie Cosmetics founder hosted an elaborate “Princess Kitty”-themed party at her Beverly Hills home on Saturday, August 8, surrounded by family members, close friends and several famous guests.

Jenner gave fans a glimpse inside the celebration the following day through a carousel of photos shared on Instagram, revealing an evening filled with pink décor, dramatic fashion, playful accessories and multiple extravagant birthday cakes.

“Happy bday eve to meeee,” Jenner wrote alongside the images.

She described the party as her “dream princess kitty bday night” and added that her heart was full, saying she loved her life and her friends.

The photos made it clear that the evening followed a carefully coordinated pink theme.

Jenner dressed for the occasion in a striking hot pink latex mini halter dress, pairing the look with matching pink nails, a feather boa and a crown.

She completed the outfit with Gucci Bombshell sandals, leaning fully into the playful, exaggerated princess aesthetic of the party.

The birthday theme extended well beyond Jenner’s own look.

One group photo showed her smiling alongside sisters Kim Kardashian, Khloé Kardashian and Kendall Jenner, all appearing to embrace the party’s head-to-toe pink dress code.

Several of Jenner’s longtime friends were also featured in the celebration, including Hailey Bieber, Devon Lee Carlson and Victoria Villarroel.

Together, the group created a sea of pink that matched the “Princess Kitty” atmosphere Jenner had envisioned.

The party’s desserts were equally elaborate.

At least two different cakes were featured during the celebration.

One was covered in gemstone-like decorations, giving it the appearance of a jeweled centerpiece rather than a traditional birthday cake.

Another leaned more directly into the evening’s feline theme, featuring cat imagery and the words “Happy Birthday Kitty Kylie” written in icing.

The visual details reflected Jenner’s reputation for turning even relatively private celebrations into highly styled events.

According to Vogue, the guest list also included several famous partners, with Justin Bieber among those reportedly in attendance.

One notable question, however, remained unanswered.

It was unclear whether Jenner’s longtime partner, actor Timothée Chalamet, attended the birthday celebration.

Jenner and Chalamet have been romantically linked for more than three years and have increasingly appeared together at high-profile events, but they have still maintained a significant degree of privacy around their relationship.

Neither Jenner’s Instagram carousel nor reports surrounding the party confirmed whether Chalamet was present for the “Princess Kitty” celebration.

The uncertainty drew additional attention because new reports about the couple’s relationship had surfaced only days before Jenner’s birthday.

A source recently told PEOPLE that Jenner and Chalamet are “very much in love” but are not interested in rushing toward an engagement.

According to the source, the couple is comfortable allowing the relationship to develop naturally.

“They don’t have plans to rush an engagement,” the insider said, adding that they are happy with the relationship as it currently stands.

The comments echoed similar remarks made by another source in late June.

That insider said Jenner and Chalamet were “in a great place” together and emphasized that both their friends and families reportedly approve of the relationship.

The source also described the couple as having an easy, supportive dynamic.

According to the insider, Chalamet makes Jenner feel relaxed and at ease, while she makes him feel secure.

Friends reportedly believe the two could remain together for the long term, but neither appears interested in forcing the relationship into a specific timetable.

For Jenner, the birthday celebration therefore arrived during what sources have characterized as a particularly stable period in her personal life.

The party also continued a tradition.

Jenner has built a reputation for treating birthdays as major events, often organizing elaborate dinners, trips and destination celebrations.

For her 28th birthday last year, she marked the occasion with an upscale dinner party attended by friends.

A year earlier, she celebrated turning 27 aboard a luxury yacht, again surrounded by people close to her.

The “Princess Kitty” party offered a different kind of spectacle.

Instead of taking the celebration to an exotic destination, Jenner transformed her own Beverly Hills home into a playful pink fantasy.

The result appeared less formal than some of her past birthday events but no less visually dramatic.

Pink feather boas, matching outfits, statement shoes, decorative cakes and an unmistakable theme gave the evening a highly personal and theatrical quality.

The party also highlighted the importance Jenner continues to place on her inner circle.

While she has one of the most recognizable families in entertainment, her birthday posts focused heavily on friendship.

Her caption specifically emphasized how grateful she felt for her life and the people around her.

That tone made the celebration feel less like a promotional event and more like a personal milestone shared with the people closest to her.

Jenner’s sisters were central to that atmosphere.

Kim, Khloé and Kendall all appeared in the images, underscoring the continued prominence of the Kardashian-Jenner family at one another’s major life events.

Hailey Bieber’s appearance added another layer of celebrity star power, while the presence of longtime friends such as Victoria Villarroel reflected relationships that have remained part of Jenner’s life for years.

At 29, Jenner has already spent more than half her life in the public eye.

She first became famous as a teenager through her family’s reality television empire before building Kylie Cosmetics into a global beauty brand and establishing herself as one of the most influential personalities on social media.

Over the years, her public image has evolved from reality television personality to entrepreneur, fashion figure and mother.

Her birthday celebrations have often mirrored that evolution, combining the lavishness associated with the Kardashian-Jenner brand with details intended to feel intimate and personal.

This year, the “Princess Kitty” theme seemed designed primarily around fun.

Rather than centering the night on formality or prestige, Jenner embraced a playful fantasy filled with exaggerated pink fashion and whimsical cake designs.

Her Instagram caption captured that mood.

“My heart if so full,” she wrote, using the typo exactly as it appeared in her post.

For fans, the message may have been just as revealing as the elaborate decorations.

Despite the expensive fashion, celebrity guest list and gemstone-covered cake, Jenner appeared most focused on the people surrounding her.

And while speculation continues over whether Timothée Chalamet was among them, the larger picture remains clear.

Kylie Jenner entered her 29th birthday surrounded by sisters, friends and a carefully curated explosion of pink.

For someone known for extravagant celebrations, the “Princess Kitty” party was completely on brand — glamorous, playful, highly visual and unmistakably Kylie.