Former First Lady Michelle Obama surprised shoppers at a Costco in Livermore, California by promoting her new healthy beverage brand, Plezi Nutrition, specifically highlighting the Plezi Fizz drink. The product aims to be a healthier alternative to traditional sugary sodas, boasting lower sugar content and added nutrients like fiber and potassium. This appearance, captured in a viral TikTok video, shows Obama engaging with the crowd, emphasizing the health benefits of the drink. Plezi Fizz is available in flavors like Lemon Lime Squeeze, Cherry Limeade, and Strawberry Lemonade, and is stocked at major retailers including Costco, Walmart, and Target. The brand's mission is to support children's health through nutritious food and beverage options. Many TikTok users expressed regret at missing the surprise visit.