ALL THE TIME
Perez Hilton - That *** is just horrendous and ****ing annoying, I ****ing HATE HATE HATE HIM and I cant stand him
Tokio Hotel - Do I really need to specify? LMAO.
Slipknot - Their music makes me have headache.
RECENTLY
Chris Brown - I started hating on him since he beated on my gurl.
Lady GaGa - Well, she has been annoying me since those frogs thing, that was ridiculous, and then I started hating like 95% of her songs now I don't stand her, I dont consider myself like the Ultimate Hater but I do not stand her =/ If she gets a little bit less overrated I may think she is okay - which not gonna happen.
Papa Roach - I helped them winning against Paramore and they bash Britney? Please. ****ing dissappear.
AND I SEE, haters are mad because TAYLOR SWIFT IS OWNING THEIR FAVES! BOOOW! 
YOU GO TAYLOR!
But Angelina is an evil, poisonous witch, in every sense of the word 
to you.
I love like 90% of ur list - except: Tokio, GaGa, Selena. and then I think some OKAY.
and please it's true, they only put Taylor there coz she is owning.