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There's a surprisingly large number of celebrity flat-Earthers out there. NBA star Kyrie Irving is one such type, as is reality star Tia Tequila. King of the flat world, however, is rapper B.o.B.
The 28-year old hip-hop star is well known for his pronouncements on the matter, having tweeted profusely about it.
"No matter how high in elevation you are...the horizon is always eye level...sorry cadets...I didn't wanna believe it either," he wrote back in 2015. "Don't believe what I say, research what I say. I'm going up against the greatest liars in history ... you've been tremendously deceived."
The rapper wears his position as king of the flat Earth with pride and now, he is taking it to the next level. B.o.B. is so convinced that the curvature of the Earth doesn't exist that he has launched a crowdfunding initiative to build his own spacecraft to conclusively prove it.
The target is $200,000 (£150,000), which seems oddly small for a spaceship, though perhaps he's going for the lawn chair tied to helium balloons that saw California man Larry Walters lifted into the stratosphere back in 1982.
The blurb is as follows: "What's up guys! Help support B.o.B purchase and launch multiple satellites into space. He will be keeping you updated with step-by-step documentation of the process! Help B.o.B find the curve!"
It looks legit - the creator of the site is one Bobby Ray in Decatur, Georgia, which certainly gets the rapper's real name, Bobby Ray Simmons and place of origin right. If that's not proof, then we don't know what is.
He even once got into a Twitter spat with Neil deGrasse Tyson - handy hint: if you have some very dubious scientific theories, don't attempt to take on the most famous astrologist in the world about it - even releasing a diss track against the scientist.
Incidentally, this caused Tyson's nephew, a rapper, to release a diss track aimed at B.o.B.: we'd tell you to listen to it, but suffice to say that deGrasse Tyson's young relative is no more a rapper than B.o.B. is a scientist.
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