1. His music is overrated and overplayed
2. His voice is so awful.
3. His dancing sucks.
4. Even when he collaborates with a song, he doesn't stand out and he sucks more.
5. The fan throwing incident.
I liked Smack That, I Wanna F**k You, and Don't Matter, but he's such a douche, I don't even have to give examples of his stupidity because everyone else knows them already. I think it's repulsive that he's actually benefitting from Sorry, Blame It On Me. Who seeks personal gain from an apology?!