the article refers to Kweli working with Gucci Mane.

now, who benefits from that? are Kweli fans going to go out and buy Gucci Mane albums? Since I am a Kweli fan, I will give you the answer, NO. Are Gucci Mane fans going to buy a Kweli record with a Gucci Mane appearance? I'm not a Gucci Mane fan but it sounds reasonable to me. So Kweli will sell his projected number of units to the fans who still buy "conscious" music, and he has made himself more relevant to fans who buy Gucci Mane albums, thus possibly generating more sales...

and Wale did the same shit!