Justin Bieber Unleashes Twitter Rant

Justin Bieber isn't having a very good week, and the teen heartthrob took to a Twitter tirade to vent about it.

In a series of tweets Wednesday to his 35 million followers, Bieber appeared overwhelmed by what he called "fake" news stories about him and some people's negativity.

"fake stories to sell papers i guess are part of the job. but im a good person. i know that. u cant tell me different. we know the truth," he tweeted.

Another said: "rumors rumors and more rumors. nothing more nothing less. might talk about them 1 day. rt now im just gonna be positive. cant bring me down"

"I understand it is part of the job to be judged…but judge me on the facts, judge me on the music, and be careful of the judgement u pass, but know this…im only judged by one power, and i serve him," he also added.

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"Justin Bieber is starting to feel the pressure," Carlos Greer, of People magazine, told ABC News. "He's literally having his Michael Jackson 'leave me alone' moment."

Bieber's bad week started Friday when actress Olivia Wilde took him to task for appearing without a shirt. The "Baby" singer has often appeared bare-chested in public.

"Bieber, put your f***ing shirt on. (unless you lost all your shirts in a fire in which case my condolences and please purchase a new shirt.)," she tweeted Friday. Her tweet was re-tweeted more than 9,500 times as of Wednesday night.

A few hours later, Bieber and his entourage were reportedly thrown out of a club where he'd gone to celebrate his nineteenth birthday. He later tweeted that it was the "worst birthday."

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A source told E! that Bieber and his crew were asked to leave the club after an argument ensued between the singer's entourage and the club's security

On Monday, disappointed Beliebers booed when the pop singer took to the stage two hours late for a London concert.

The singer said he was only 40 minutes late but later tweeted an apology.

"There is no excuse for that and I apologize for anyone we upset," he wrote.

"Justin is one of those stars that we see constantly," said People's Greer. "When you're that overexposed, he may experience a backlash."