Her friends also matched the theme. The three ladies were dressed in black dresses as they lip-synced to the provocative lyrics while striking playful poses in front of the camera. In the video, Kai captioned, “Last day being 17,” followed by a teary-eyed emoji.

As the camera rolled, the group swayed to the lines of the song. The video did not go unnoticed. Within hours, it became a lightning rod for debate across social media.

Many viewers took issue with the choice of song. Its provocative lyrics, paired with the announcement of Kai turning 18, raised eyebrows. Critics called the timing and tone inappropriate.

One social media user on X remarked, “Cringe. Kai don’t sink to the levels of your peers. This is not giving the impression you think it is. Highly suggestive posting this song with an announcement of your turn of age. You have so much ahead of you! Don’t let the world turn you into average. Happy Birthday though.”

Another comment read, “They are kids trying to act cool. They all look very weird and stiff. It’s like they would like to move and dance to this song, but they don’t know how to. It is embarrassing. Kai shouldn’t be doing this. She belongs to a different class of women. This is not suitable for her.”

Others were more blunt: “Not a good look,” one person wrote. Another noted, “I watched this several dozen times, and yes, it is entirely inappropriate.” A handful of viewers speculated how her family might respond. One person posted, “She’s cute but I think grandpa will have a talk with her. Decent, classy young ladies do not post things such as this.”

Still, not all the feedback was critical. Some defended Kai’s right to express herself. “For what? Being a teenage girl? Kai appears extremely well-parented. Leave her alone,” one supporter argued. Another simply stated, “She’s young and having fun.”

Beyond the TikTok video, Kai offered more personal glimpses into her milestone day through other social platforms. On Instagram, she posted a birthday tribute to herself, featuring a series of photos.

The collection included throwback images from childhood, a heartfelt snapshot with her grandfather, and a close-up of her birthday cake—pink and festively decorated for the occasion.

The post painted a fuller picture of Kai’s celebration, blending nostalgia with a sense of transition into adulthood. “17, you taught me a lot about life. 18, I hope you teach me a lot more,” she captioned.

Over on TikTok, she followed up with another video. This one offered fans a peek into her birthday setup. At one point in the clip, two large balloons shaped like the number 18 appeared, marking the occasion in bright metallic tones.

The posts showcased both the public and private sides of Kai’s entry into adulthood — a moment shared not just with friends and family, but with millions online.

We previously reported that in February, Kai’s polished appearance drew a wave of positive reactions from netizens, with followers praising her poise and growing online influence. At the time, she shared photos on Facebook and Instagram, highlighting her golf game in San Diego, California.

The photos captured different moments of her week there. In one shot, Kai walked across the rain-soaked golf course, dressed in a black puffer vest, dark pants, and a white cap. Despite the gloomy weather, she smiled as someone held an umbrella over her while a cameraman captured the moment.

Moving indoors, Kai posed inside a wooden locker next to Tiger Woods’ iconic golf bag, complete with his signature tiger headcover. Sitting cross-legged beneath a nameplate that read “Kai Trump,” she smiled in her blue long-sleeve top, white pants, and black cap, marking a special moment in the clubhouse.

The photos also showed Kai in a workshop, where she’s seen carefully examining golf shafts from a drawer filled with various club components. Focused and hands-on, she inspects the equipment while a camera crew documents the process, highlighting her attention to detail.

Stepping back outside, Kai sat behind the wheel of a golf cart, looking relaxed and confident. She smiled at the camera, still in her blue top and white pants, with a coffee cup resting nearby — ready for another round despite the rainy weather.

The day wrapped up with a group photo on the course, where Kai stood in the middle, surrounded by family and friends. Wearing her black puffer vest and white cap, she smiled alongside the group, embracing the moment under the overcast skies.

Fans didn’t hold back their admiration in the comments. “Sweetness of Kai is unmatched 😍” one follower wrote, while another added, “She has her grandpa’s swagger and confidence! So much class and such a beautiful young lady. ❤️”

A third chimed in, “On that golf course, you are Kai the most beautiful flower ❤️🌹.” A different user complimented Kai and her mother, Vanessa Trump, calling them “gorgeous.”