Prominent flat-earthers include Kyrie Irving and B.O.B.
About a decade ago, Neil deGrasse Tyson tried to put an end B.O.B's flat-earth advocacy by dropping some science.
He may have to do that again with another rapper.
During a stop on the Joe Budden show, Wiz Khalifa told the crew that he doesn't believe the earth is round.
"I just believe that we live on a flat plane, like a huge flat plane," Wiz said.
Do you think he really believes this?