I'm actually bored of criticising him now, as it's too much of an open goal: can't sing well, can't rap well, best work is in the past, rapidly losing his allegedly decent lyrical ability, increasingly outdated, uses autotune, best parts of his songs are often samples of other people's excellent work, the triumph of publicity over talent etc etc; it's like a list of Rooney's current failings - all "can'ts" and "used to's".
Plus he's an utter cnut. Such a cnut that he once made me feel sorry for Taylor Swift of all people.