Sometimes people will say something that's completely against popular opinion and, even though you know it's not true, you start to believe it anyway. B.o.B is not one of those people. He's not fooling anybody with his 'the Earth is flat' rant, especially not Neil deGrasse Tyson. 

B.o.BB.o.B believes the Earth is flat

It's actually a pretty ridiculous situation. B.o.B has been Tweeting his theories about space, science and politics related conpiracies for weeks and he's recently graduated to the 'Earth is flat' stage of Stupid Academy. Between the insistences that he's not crazy or 'doing anything stronger than weed', he's alleged that the government knows the Earth is flat and that's why they apparently won't let explorers too far into Antarctica. 'What's there to hide?' He asks. Well B.o.B, probably all the frozen corpses of those who have fallen victim to those types of weather conditions. RIP Henry Worsley.

'Once you go flat, you never go back', says B.o.B as he marvels at straight horizons and CGI images of space. And astrophysicist Neil deGrasse Tyson is seriously glad that the rapper isn't important enough for his beliefs to matter. 'Flat Earth is a problem only when people in charge think that way. No law stops you from regressively basking in it', he Tweets. 'Duude  - to be clear: Being five centuries regressed in your reasoning doesn't mean we all can't still like your music.'

More: B.o.B rants about the Earth being flat

The beef has actually upgraded to diss tracks now, B.o.B releasing a song called 'Flatline'. 'Aye, Neil Tyson need to loosen up his vest/ They'll probably write that man one hell of a cheque', he raps. It's a pretty catchy tune in fairness, and harmless enough until he gets to the anti-Semitist bit about Jews controlling the government. 'Do your research on David Irving/ Stalin was way worse than Hitler/ That's why the POTUS gotta wear a kippah', he says, referencing the controversial Holocaust denier.

Tyson soon hit back with a little help from his nephew Stephen Tyson in 'Flat To Fact'. 'I think it's very clear, that Bobby didn't read enough/ And he's believing all this conspiracy theory stuff', he raps in his own verse. 'What about the change of seasons?/ The planet spins around the sun, do you need more reasons?'

In fact, the Tysons were so baffled by B.o.B's ludicrous theory that they even suggested that he was just bringing up all the conspiracy stuff for fame. Hopefully it is all just a major publicity stunt.

Listen to 'Flat To Fact' here: