She never mentions Amy Winehouse by name, but from the castigation of her target's "junkie routine" to the hip-hop sheen coating the girl-group glitter of multi-instrumentalist Adam Pallin's brightly chiming piano, it could hardly be anyone else.
Several of his albums have achieved multi-platinum sales, but he remains equally well-known for feuds with other hip-hop luminaries, including Eminem, 50 Cent and Dr Dre.