Slowly but surely, Chicago-based rapper Lil Herb is making a name for himself. He was featured on the first track of Common's new album Nobody's Smiling, and today he's shared a new collaboration with Earl Sweatshirt titled 'Knucklehead'. The song, which you can stream below, was produced by Sweatshirt himself and shows off his impeccable production skills once again while keeping Herb's distinct style of rapping in the forefront. It's a part of Red Bull's '20 before 15' series.

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