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.

LIVERMORE, Calif. - Former first lady Michelle Obama visited the Bay Area on Wednesday, surprising shoppers at an unexpected ...

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

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

Most Costco shoppers probably don't expect to spot a former first lady inside the big-box retailer, but some California ...

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