The worldwide post relationship break-up song “IDFWU” by Big Sean and E-40 is on top of the charts. So it’s only right to perform it on the top night show with Jimmy Fallon. Share50 Tweet Share Buffer EmailShares 50 ariana grande BIG SEAN big sean dallas big sean e40 idfwu big sean idfwu video big sean jimmy fallon big sean k104 big sean live chris cole k104 dallas av the great e40 e40 jimmy fallon idfwu jimmy fallon