The Socialite Behind ‘Thank You, Kateyki’ is a Woman of Grace and Class

Aon Somrutai Rattanawaraha, the glamorous Thai woman on TikTok, is beloved for her viral catchphrase “Thank you, Kateyki,” and her respectful and kind nature.

By Moira Del Rosario March 21, 2025

“Thank you, Kateyki!” This TikTok catchphrase, uttered by Thai socialite Aon Somrutai to her favorite bodyguard of the same name, is often accompanied by lavish settings and playful charisma. But beyond the shopping sprees, her favorite Lamborghini, and personal bodyguard flanking her, Somrutai (also known as Somrutai Rattanawaraha) is more than just social status. Despite her eye-catching, luxurious lifestyle, her true charm extends to her business acumen, graciousness, and class. Here’s what we know about the viral TikTok star:

@aonsomrutai My Saturday 🛍️ #aonsomrutai #ออนสมฤทัย #luxurylife #shopping #billionaire ♬ Vivaldi – 2 Violins op 8 Allegro 1 – AllMusicGallery

A Peek into Her Private Life

Despite sharing glimpses of her extravagant life with nearly 2 million followers, Somrutai remains surprisingly private. What she has shared, however, is her loving relationship with Dr. Nopparat, which she revealed early last year. As the founder of Nopparat Cosmetic Clinic in Bangkok, the doctor is a leading cosmetic surgeon who specializes in facial and body procedures. He is also the go-to plastic surgeon for many celebrities. He even did Somrutai’s nose! True love has its perks.

^{Aon Somrutai and her husband Dr. Nopparat}

She has shown her audience a glimpse of her relationship with the doctor, who has been a chivalrous and supportive man. With such an extravagant woman, it is only right that Dr. Nopparat proposed to her on a snowy mountaintop. As expected, their wedding was just as opulent: six outfit changes, 20 bodyguards lined up—including the famous Kateyki, of course—as she walked up to her husband, and even a live performance to her own song “Thank you, Kateyki.” It was a real-life Crazy Rich Asians moment!

The Business Behind the Luxury

Somrutai isn’t just a luxury enthusiast—she’s a businesswoman deeply involved in the fashion industry. Before she became a viral online star, she had made a name for herself in the trade and started out through her two businesses. Launched in 2013, SF BRANDNAME is an online platform for buying, selling, and trading pre-loved designer items.

@aonsomrutai I'm looking for bags that fits my phone 📱👜 @Perrine Porter – แบรนด์เนมแท้ #aonsomrutai #ออนสมฤทัย #luxurylife #billionaire #perineporter ♬ Vivaldi – 2 Violins op 8 Allegro 1 – AllMusicGallery

Years later, Somrutai founded her own luxury brand, Perrine Porter. After more than a decade, she’s committed to her mission for fashion to be accessible, all while combining luxury with sustainability through selling and trading. With her interest in the industry already growing since she was a child, the socialite’s knowledge of business proves that her success isn’t just about spending on luxury, but understanding its value.

Thank You, Khun Noi!

Aside from her bodyguard Kateyki, there is another constant character in her videos: a sweet maid named Khun Noi. Like her bodyguard, the maid follows her every step, carries her shopping bags, gives her the best compliments, and is also a helpful doll, making sure that Somrutai is satisfied in all aspects.

@aonsomrutai Chilling Day 👙🎀🩷 #aonsomrutai #ออนสมฤทัย #billionaire #Thankyoukateyki #luxurylife #Kateyki ♬ Vivaldi – 2 Violins op 8 Allegro 1 – AllMusicGallery

What’s very endearing about the socialite is how deeply respectful and appreciative she is towards staff and service workers. She is a reminder that kindness transcends status. Her simple words of appreciation, such as “Thank you, Kateyki” or “Thank you, Khun Noi,” playfully yet meaningfully highlight gratitude in everyday interactions. That’s something we should learn from Somrutai.

More Than Just a Socialite

Somrutai’s ability to balance elegance, sustainability, and kindness makes her an inspiring figure beyond the viral trends and entrepreneurial achievements. You might find her to be just another lavish woman flaunting her wealth and lifestyle, but think deeper and you’ll see that her story is a refreshing reminder that true class is measured not just by what you own, but by how you treat others. Whether you’re drawn to her lavish lifestyle or her playful catchphrase, Aon Somrutai’s story is a reminder that true elegance goes beyond wealth. Her grace, gratitude, and grounded personality prove that kindness never goes out of style, and that is worth following.