Sales of the singer's sweet potato pies, which are stocked in U.S. supermarket chain Walmart, rocketed after James Wright Chanel reviewed them in a video which became an online sensation.

Patti has now revealed she has invited James to join her for Thanksgiving dinner on Thursday (26Nov15) to express her gratitude for his help.

"My new friend (James) did this fierce video, and it took the pie over the top and people are losing their minds..." she tells U.S. news outlet Fox 29 Philadelphia. "We're going to be together in Philly. He's here now and he's spending Thanksgiving with Ms. Patti... I'm going to cook for him... You give love to people who give you love. And you know, I didn't expect a viral video."

In the clip, James breaks into song and dances around to express his delight at the dessert, which has since sold out in most stores and online.