Justin Bieber Fans Threaten Mariah Yeater on Twitter

Justin Bieber fans are taking to Twitter to vent their fury towards Mariah Yeater, the woman who claimed that Bieber fathered her baby, and some fans are even issuing death threats.

The big story surrounding the pop singer broke yesterday on multiple news outlets which revealed that Yeater, a 20-year-old woman Bieiber allegedly met backstage during a concert at the Staples Center in Los Angeles last year, claimed she had sex with the pop star and is now raising his almost 4-month-old baby.

Bieber denied the story and said it was a complete lie, but that has not quelled the anger of his passionate fans, commonly known as “Beliebers.”

Bieber’s fans have flocked to Twitter and posted thousands of messages threatening to harm or even kill Yeater.

 Princess_callie tweeted: “Omg this mariah yeater person needs to die asap.”

Bieber1DTour tweeted: “LIFE WOULD BE BETTER IF Mariah Yeater WOULD DIE.”

InsideTheBiebsx even attacked those who believed the story: “If anyone actually believes this Mariah Yeater chick, then please go die.”

ShainaJBiebs spoke on behalf of all Beliebers: “Dear Mariah Yeater, we are holding off killing you. But once there is proof you're lying, your probably going to die. Sincerely Beliebers.”

Dr. Jeffrey Gardere, a clinical psychologist, spoke with FOX411.com and analyzed the feelings that are leading Bieber’s fans to post such extreme comments. He said that they are “angry their idol is being squeezed, manipulated, embarrassed.”

The psychologist also said that it is unlikely the death threats are going to pose serious danger for Yeater. He explained that the fans are simply carried away emotionally.

This is not the first time Beliebers have launched such attacks through Twitter. Selena Gomez and Kim Kardashian received similar threats when fans became jealous over images of them with the teenage heartthrob.