Alicia Keys’ “It’s On Again” Featuring Kendrick Lamar Available Now! iTunes: http://smarturl.it/TASM2dlx?IQid=akbyt Amazon: http://smarturl.it/TASM2amazon?IQId=akyt Music video by Alicia Keys feat. Kendrick Lamar performing It's On Again. (C) 2014 Columbia Pictures Industries, Inc.