Video shows late night host Jimmy Fallon interviewing singer Kelly Clarkson about a weight loss product.

A spate of altered videos appears to show singer Kelly Clarkson letting fans in on her weight loss secret, but they aren’t authentic. 

A recent one, shared in a Nov. 6 Facebook post, appears to show “The Tonight Show” host Jimmy Fallon interviewing Clarkson about a “scientifically backed natural product that helps people to part with fat within a short period of time,” the post says. 

“You lost 37 L-Bs in a short time,” Fallon appears to say in the altered video. “Share your journey with our viewers.”

“Good afternoon,” Clarkson seems to reply. “Most people probably know me from music, I’m 41 years old, I wasn’t always happy with my body, but I decided to take action and I lost a total of 37 pounds.” 

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The original video used to create this altered one doesn’t show Fallon and Clarkson discussing a weight loss product. Rather, Clarkson appeared on “The Tonight Show” in October to talk about her new album, “Chemistry.” 

We rate claims that this altered video is authentic False.