Some Costco shoppers in the East Bay got a big surprise earlier this week -- former First Lady Michelle Obama! She was there promoting her new brand of drink called PLEZi at the Costco in Livermore.

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

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

Former First Lady Michelle Obama appeared at a popular retail store in Livermore, California, to promote her new soda brand ...

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

Because some of those "Bike Angels" are making bank, here are your afternoon links: A pop-up Rainforest Cafe, a "Rat Man" ...

But that’s exactly what happened Tuesday when the one and only Michelle Obama surprised a handful of shoppers at a Bay Area Costco. It wasn’t a warehouse in a big city like San Francisco, either. No.

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

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

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

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