Photo by PapCulture / BACKGRID

Lizzo checked a scholar and author who disrespected her by claiming she is only popular because there is an obesity epidemic in America.

The 31-year-old singer/rapper, real name Melissa Viviane Jefferson, is one of 2019's biggest stars. She topped the Billboard Hot 100 chart with her 2017 release Truth Hurts and she bagged an impressive eight Grammy nominations - more than any other artist.

Photo by PapCulture / BACKGRID

Lizzo was honored as Time's Entertainer of the Year, and she was the guest performer on Saturday Night Live when Eddie Murphy made his triumphant return to SNL on Dec. 21.

However, on Friday, Dec. 20, one Twitter user, social commentator Dr. Boyce Watkins, attempted to shame the entertainer, claiming her weight and America's obesity epidemic were behind her extraordinary success.

"#Lizzo popular is because there is an obesity epidemic in America. Rather than encouraging people to do better, we are simply lying to them and telling them that they are just fine the way they are," Watkins wrote. "Unfortunately, Many of these people are dying from diabetes and heart disease."

Photo by PapCulture / BACKGRID

Refusing to let the negativity slide, the "Juice" singer clapped back, insisting her immense "talent" was behind her widespread popularity.

"I'm popular because I write good songs and I'm talented and perform high energy hour and a half shows filled with love," Lizzo fired back. "The only person who needs to do better is you. Keep my name out ya mouth & look in the mirror before you come for me."

She added: "Here's the attention you ordered."