Music Dr. Khalid Muhammad's Estate Files Lawsuits Against 2Pac, Public Enemy, And D'Angelo Over Uncleared Vocal Samples Dr. Khalid Muhammad's estate filed lawsuits against several prominent artists, citing uncleared samples of his voice. By Devin Morton 1.5K Views 
Music Dr. Khalid Muhammad’s Estate Goes After Public Enemy, Ice Cube & More Over Unlicensed Samples Several iconic hip-hop songs have sampled the words of the late activist, Khalid Muhammad, and his estate wants compensation. By Cole Blake 1072 Views 
