B.o.B is one of the handful of underground hip hop artists we started covering in 2009, that eventually went mainstream and crossed over into pop. During a recent interview with Hot 97, that very topic of crossing over came up and B.o.B's ever-vocal management got into it with Ebro and Peter Rosenberg. 
Video | May 21, 2013
B.o.B Battles Hot 97 On Air Over “Crossing Over” & “Going Mainstream” (Video)

B.o.B is one of the handful of underground hip hop artists we started covering in 2009, that eventually went mainstream and crossed over into pop. During a recent interview with Hot 97, that very topic of crossing over came up and B.o.B's ever-vocal management got into it with Ebro and Peter Rosenberg.