Neil deGrasse Tyson Fires Back At B.o.B. With “Flat To Fact” Diss Track (AUDIO) By: Yohance Kyles (@HUEYmixwitRILEY) Updated Jan 27, 2016 at 6:34amCategory: Music THE ASTROPHYSICIST RECRUITS A RAPPER NAMED TYSON TO DROP SOME BARS ON BOBBY