In a rap/astrophysicist beef no one saw coming, B.o.B and Neil deGrasse Tyson engaged in a heated online conversation regarding theories about the shape of planet Earth.

Believe it or not, Adele’s 21 album is still selling copies. She sold over 77, 000 units this week, landing her at the #4 spot.  B.O.B.’s Strange Clouds came right behind her, debuting at #5. Nicki Minaj falls out of the Top 10 after two weeks as Roman Reloaded drops to #17.