Mos Def Says He’s Retiring “Mos Def” Name: “It’s Time To Expand & Move On” Mos Def Says He's Retiring "Mos Def" Name: "It's Time To Expand & Move On" Tambay A. Obenson Sep 6, 2011 11:22 am Share This Article Reddit LinkedIn WhatsApp Email Print Talk Speaking with MTV this past weekend at Rock The Bells… (aka Yasiin): This Article is related to: Uncategorized and tagged FYI, Things That Make You Go Hmm...