Since the murder of Trayvon Martin, a number of celebrities have cried out for justice for the 17-year-old Florida teen. Surprisingly however, there are still a few who have yet to give their opinion.

While artists like Common, Mos Def and even Plies are doing their part to at least bluff like they care about Martin’s murder, six of the biggest acts in hip-hop have yet to utter a word.

Here are six people who could and should speak out about the murder of Trayvon Martin.