Last night Adult Swim pulled a fast one and sneaked in the first teaser promo TV ad for The Boondocks season 4, signaling promo work has begun for the long-awaited series return. The new teaser shows a silhouetted Huey Freeman traversing through a silhouetted Woodcrest with hip hop music, vocals, and  sound effects running in the background. The new teaser can be seem below, season 4 of The Boondocks premieres Monday April 21, 2014 at 10: 30 PM/9: 30 PM: