Chief Keef announced he potentially has new music with Lil Wayne after posting a photo of himself with the music icon onto IG. Sosa wrote in. New music from Wayne and Sosa? Hey Wayne Sosa needs those vocals we need those vocals! Chief Keef recently posted on Instagram a. Chief Keef is one of the hardest-working people in music. The grind never truly stops for the Chi-town native. Sosa dropped off his fourth.