Killer Mike is many things—rapper, father, husband, activist, comic book enthusiast who just wrote a passionate introduction to Marvel's Hip Hop Covers collection. On Tuesday (Jan. 5), he hit The Late Show with Stephen Colbert, oscillating in his interview between a laugh-getter and an eye-opener.

After Colbert and the Run the Jewels king satirically decided to individually speak for all white people and all black people, respectively, they got into the reality of the murder-incited social upheavals in places like Ferguson, North Charleston and Baltimore awakening white Americans to the ideas now manifesting in the Black Lives Matter movement. Mike went in:

“If white people are just now discovering it’s bad for black and working-class people in America, they’re a lot more blind than I thought. And they’re a lot more...choosing to be ignorant than I thought. The same problems that we’re discussing today, we discussed in 1990, 1980, 1970 and 1960. And until we call a spade a spade and we say that this problem is coming from conditions that we’re creating or allowing to happen, as a white group of people who hold a certain amount of power, then..."

Colbert jumped in there. The rest of the interview included discussions of educational segregation, presidential hopeful Bernie Sanders, PTA-meeting-appropriate sweatsuits and whether white folks should start getting their hair cut in black-owned barbershops (like the one Killer Mike owns in Atlanta).

Here's the video Mike recommends white people watch, "because it'll actually grow you":