Los Angeles - Rapper Percy "Master P" Miller has been named president of Udub Music, a digital label launched by entertainment content distributor UrbanWorld Wireless, Billboard reports. The label's advisory board also includes former MCA Records president of urban music Ernie Singleton. Udub, whose roster includes Clipse, 40 Glocc and Bonecrusher, will create social networks for each of its artists, and distribute tracks both through its own site and via partners including Jamster, Thumbplay and T-Mobile.