VIDEO : Nick Cannon Has Quit ?America?s Got Talent? After NBC Put Him On Blast

UProxx reports that Nick Cannon abruptly announced that he?s leaving America?s Got Talent, the reality competition series he?s hosted since the fourth season in 2009, in a lengthy Facebook post Monday morning. His decision was due to the fact that he recently came under fire from NBC over a joke he made in his Showtime standup special that aired last Friday, which reportedly led to the network to consider letting him go. In the special, Cannon joked that NBC was deliberately making him tone down his swagger and making him ?lose his black card.? Although NBC ultimately decided not to part ways, apparently just the insinuation alone was enough for Cannon,