Which stars love reading mean tweets?

US comedian Jimmy Kimmel has stars Kristen Stewart, Justin Bieber and others read out the hurtful tweets directed at them

Katy Perry read a mean tweet. Source: Supplied

IT'S easily one of the funniest segments on TV — when celebrities read mean tweets about themselves on US talk show Jimmy Kimmel Live.

So far there have been 10 editions of Celebrities Read Mean Tweets with stars such as George Clooney, Katy Perry, Tom Hanks and even Justin Bieber taking part.

You might think that A-listers would cringe at the thought of reading horrifically negative comments about themselves, but according to Jimmy Kimmel Live head writer, Molly McNearney, some celebs take great delight in it.

Pharrell ... not so happy. Source: YouTube

"Cate Blanchett actually wanted meaner," said McNearney to Entertainment Weekly .

"Julia Louis-Dreyfus wanted meaner. Emma Stone, when we booked her, said, 'I want to read as many mean tweets as you can find about me.' And she read a bunch."

"Anytime we book a guest on the show, we search their name on Twitter and pull all of the terrible things written about them," said McNearney.

Fair trade. Source: YouTube

"I take out ones that would offend them to a point that they wouldn't want to come on our show [laughs] and also that just shouldn't be said on television. But I keep some mean ones in there — truly, the meaner the funnier, in my opinion."