Revealed on Twitter by Kanye West last night, Yasiin Bey aka Mos Def took to an audio message to reference his recent arrest and expulsion from South Africa for his illegal "world passport," in the form of a spoken word acapella. Def and his family had been living in the country on a visitor's permit and have now been ordered to leave.

But Yasiin's side of the story was made clear in the new freestyle. The clip comes with bad news for fans however, as Def announced his retirement from music "effective immediately." Although, he did promise to release one final album later this year.