Tim Challies posts to promote "Christian rapper", Lecrae, who I heard about for the first time in his post.
Let me direct you to Google Image search.
Where I've come across it, one invariant of rap music culture has been "look at me, look at me - I'm the big guy. I'm hard, moody, and you mess at your peril."
Now, look again at those images. Did they make you say "ah, the culture of Christian rap is so refreshingly different! Go, Lacrae - you'll show people a different way!".
'Nuff said. Now get off my turf before I blow your brains out. Apologies if my lingo reminds me of your grandad's attempts to be cool.