Earlier this year Patti LaBelle teamed up with Walmart to sell sweet potato pie for $3.48 a box. Sales were less than stellar until this guy did a review of them. Now the pies are flying off the shelves.

According to Kerry Robinson, vice president for bakery and deli at Wal-Mart, they were selling a pie per second last weekend, after the video dropped.

That number is close to the reigning king of holiday pies, pumpkin. It's also caused some supply issues for LaBelle's pies.