If you’ve opened this, it’s because, like much of the internet, you’re left with the face of "who is this girl?" after Ibai Llanos revealed the lineup for La Velada del Año 6. Don’t worry, here you will find everything you need to know about Tatiana Kaer, the TikToker who will step into the ring against Marta Díaz on 25 July at the Estadio de La Cartuja in Seville. From her age and origins to her relationship with Héctor Fort, through the controversies that have made her one of the most sought-after content creators in Spain.
Who is Tatiana Kaer: age, origin and family roots
Tatiana Kaer was born on 28 August 2004 in Valencia, making her a 21-year-old who already has more followers than many celebrities with decades of experience. But her personal story goes much further than viral videos.
Her father is Spanish and her mother is Estonian, a cultural mix that she has proudly claimed on multiple occasions on her social media. In fact, she has mentioned several times that her name, Tatiana, is a tribute to her Russian grandmother, a detail that connects with the surname Kaer, which has a Baltic resonance. If you were wondering why you sometimes see her speaking English with a rather polished British accent, the answer is simple: she spent part of her childhood studying at a boarding school in the UK, something that shaped her cosmopolitan character and her ease in front of the camera.
She is not the only Kaer on TikTok: Joana Kaer, her sister, also has a presence on the platform and has collaborated with Tati on several videos that their followers received enthusiastically.
Studies and the unexpected leap into modelling
Here comes one of those stories that seem straight out of a movie (bad, but endearing). Tatiana entered professional modelling at the age of 17 almost unintentionally, as she studied photography at school and most of her classmates urged her to model for them. What started as doing a favour for her classmates ended up becoming her profession.
From that moment on, luxury brands and high-level events began to knock on her door. She has walked the runway, posed for fashion and beauty campaigns, and has been the face of brands like Shein, appearing on red carpets with the ease of someone who has spent their whole life in front of the spotlight. In recent months, she has been one of the standout personalities at the GQ Men of the Year Awards, and she also attended the GenZ Awards, where her presence did not go unnoticed.
Her journey in the fashion industry has not been without controversy. In 2023, Kaer sparked outrage on social media with a TikTok video that supposedly unveiled the hidden side of modelling, denouncing situations where agencies selected girls based on their looks to send them to exclusive events with questionable requests. The video opened a debate about the ethical boundaries of the industry that generated millions of views.
From TikTok to 19 million followers: her digital career
The real boom of Tatiana Kaer came through TikTok. She launched her account in November 2020, during the pandemic, and what started with typical viral trends transformed into something much bigger. Her content mixes dances, memes, lip syncs, travel vlogs, and fashion advice with a personality that captivates: she is approachable, fun, and has no problem laughing at herself.
The numbers speak for themselves. Currently, her social media presence is split between TikTok, with over 19 million followers, Instagram, where she has over 5 million, and YouTube, with more than 600,000 subscribers on her main channel. To give you an idea of her reach: between 60 and 70% of her audience comes from TikTok, making her one of the Spanish creators with the greatest penetration in Generation Z.
Team Beta and the era of TikTok houses
If you followed the ecosystem of Spanish creators, you surely remember the craze for TikTok houses. Tatiana lived with creators like Lola Lolita and Sofía Surferss in a collective of creators in Spain, and that experience propelled her growth.
But the project that really defined her within the community was Team Beta. Along with her friend and fellow creator Apolo Ribera, as well as other influencers, she formed this group that included Alvarito Barras, Miguel Llanos, and twins Iván and Emilio Martínez. The collective focused on creating joint content of pranks, dances, and collaborations that accumulated millions of views. After almost a year together, the team dissolved their living arrangement, but the boost it gave to each of its members was undeniable.
The close relationship between Tati and Apolo fueled months of speculation about a possible romance between them, although it was never confirmed.
The Disneyland Tokyo controversy
If there is one moment that turned Tatiana Kaer into international news, it was the incident at Disneyland Tokyo in April 2025. While enjoying a day at the park creating content, security personnel approached her to ask her to cover up because several visitors had complained about her outfit. She was wearing baggy jeans and a white t-shirt that left one shoulder and part of her back exposed.
The video went absolutely viral, accumulating over 55 million views, and divided the internet between those defending her freedom of dress and those appealing for respect for Japanese cultural norms and the family-friendly environment of the park. One of those social media debates where no one wins but everyone has an opinion.
Partner: her relationship with Héctor Fort
Tatiana's romantic chapter also makes headlines. She started dating Spanish footballer Héctor Fort in October 2025. Fort is a right-back trained at La Masía of FC Barcelona, currently on loan to Elche CF, and a close friend of Lamine Yamal.
The couple confirmed their relationship with a Halloween photoshoot dressed as vampires that set Instagram ablaze. Since then, they have not hidden: Tatiana regularly attends Héctor's matches at the Estadio Martínez Valero and they both share moments together on their respective social media.
After the announcement of Tati's participation in La Velada del Año 6, Fort dedicated a public message to her on his Instagram stories showing his complete confidence in her. The footballer-influencer couple you didn’t know you needed.
Before Fort, the TikToker was also linked to Colombian singer Ryan Castro after they were photographed together in Curacao, although that relationship was never officially confirmed.
La Velada del Año 6: Tatiana Kaer vs. Marta Díaz
And we arrive at the reason you are probably reading this. Among the standout fights of La Velada del Año 6 is the headline female duel: Marta Díaz against Tatiana Kaer. The event, organized as always by Ibai Llanos, will take place on 25 July 2026 at La Cartuja in Seville.
Interestingly, Tatiana was not Marta's original opponent. Carolina Monclús, known as Mujerdebuenapasta, was supposed to be Marta's opponent, but she dropped out of the event at the last minute, forcing Ibai's team to look for a high-level replacement. And that’s where Tati came in.
The presentation already left memorable moments. Marta Díaz made a comment that went viral instantly, addressing her rival with an ironic message about Mujerdebuenapasta's withdrawal. For her part, Tatiana Kaer responded gracefully, assuring that she is 100% committed to training and intends to give it her all in the ring.
Physical stats and profile for the fight
Tatiana Kaer's height is recorded at 165 centimeters, a detail that amateur boxing fans are already analysing to make their predictions. At 21 years old and with no previous experience in contact sports, her preparation over the coming months will be key to facing a Marta Díaz who has long wanted to step into the ring.
The fight will be the eighth of the night within a lineup of ten bouts that includes highly anticipated matchups like IlloJuan vs. TheGrefg in the main event, Kidd Keo vs. Lit Killah, or Plex vs. Fernanfloo. La Velada will be streamed live and for free on YouTube, Twitch, and TikTok, with an expected audience of millions of viewers across the Spanish-speaking world.
Awards and recognitions
Beyond the numbers on social media, Tatiana has been accumulating recognitions that establish her as more than just a viral TikToker. She has been awarded Spanish influencer of the year at the Socialiteen Awards and has had a prominent presence at events such as the GQ Awards and the GenZ Awards. All this at the age of 21, with a career that, seen in perspective, is just beginning.
With La Velada as her next stop, Tatiana Kaer is preparing to make a leap that goes beyond likes: from the endless scroll to the ring, with boxing gloves and millions of eyes on every punch.
You may also like
