The surprise visit was shared on TikTok and confirmed by Abby Hagstrom, a public relations account director at Havas Formula.

Michelle Obama promoted her health beverage line, Plezi Fizz, at a Livermore Costco, generating buzz on social media.

Former first lady Michelle Obama was at a Costco in Livermore, California, Tuesday promoting her new line of youth-friendly ...

Yes, you read that right. Former First Lady Michelle Obama was spotted at a Livermore Costco handing out samples of her new, ...

A video posted on TikTok shows Obama interacting with Costco shoppers in Livermore and promoting the drink brand, PLEZi ...

Former first lady Michelle Obama was seen promoting her new drink at a Costco in Northern California on Tuesday, TMZ reported ...

Even former first ladies stop at Costco every now and then, but this wasn't a casual shopping trip. Here's what Michelle ...

Yes, you read that right. Former First Lady Michelle Obama was spotted at a Livermore Costco handing out samples of her new, ...

Michelle Obama was promoting her new beverage line, PLEZi FiZZ, at a Costco location in Northern California. See more, here.

The former First Lady was drew a crowd at a Bay Area Costco this week as she stopped by to promote a new healthy product ...

In the 25-second video, Michelle Obama informed the audience that the beverage was healthy, calorie-free, and delicious. A ...

A now-viral TikTok captured former first lady Michelle Obama touting her new healthy beverage business, Plezi Nutrition, at a Costco in Livermore, California, Tuesday while a crowd of customers ...