Last year, Hopsin said he was quitting  rap and moving to Australia. Then he didn't, claiming he was just trolling his fans. 

Well, he definitely quit the live show he was doing for Revolt TV yesterday, storming off stage mid song.

It looks like a forgotten lyric was what triggered his abrupt departure. Maybe he was thinking too hard about that Jaden Smith-like "Did the man who invented college go to college" question that he had just lyrically posed.

Or maybe he was thinking about his massive phone bill.