Drake Cut Off Air After Criticizing Grammys During Best Rap Song Acceptance Speech

Drake used his acceptance speech for the Best Rap Song to denounce the entire idea of the Grammys.

"We play in an opinion-based sport, not a factual based sport. It's not the NBA where at the end of the year you're holding the trophy because you made the right decision or won the games. You’ve already won if you have people singing your songs word for word, if you’re a hero in your hometown. Look, if there's people who have regular jobs coming out in the rain, in the snow, spending their hard-earned money to buy tickets to come to your shows. You don't need this right here. I promise you, you already won."

The producers at the Grammys eventually heard enough and cut the rapper's speech short. 

Grammys clarified that producers did not intentionally cut off Drake 
“During Drake’s speech, there was a natural pause and at that moment the producers did assume that he was done and then cut to commercial. However the producers did speak with Drake following his speech and did offer him to come back on stage to finish whatever his thoughts were. But Drake said he was happy with what he said and didn’t have anything to add.”

source, 2, 3