Bieber Beliebers Deliver Death Threats To Alleged Babymama

Angry Justin Bieber fans are going to bat for their messiah.

Following news that 20-year-old Mariah Yeater had filed a paternity suit against the pop star claiming that Bieber is the father of her three-month old baby, an army of Beliebers took to the Internet to threaten her life.

Fox reports that among the tweets are one from a user named @BeccaLindsay saying, “I could kill this bitch, really she messes with my baby!!! SHE IS SOOO DEAD."

Another from @EvelynHorwitz, who describes herself as a “real Belieber", says “Dear Mariah Yeater, Roses are red, violets are blue, stay away from Bieber or Beliebers will kill you.

There's a lot more but you get the idea.

“These girls are obsessed with Justin. They probably think the girl is lying about being with him and trying to take advantage of him,” clinical psychologist Dr. Jeffrey Gardere told FOX411.com. “They may believe that in many ways she is destroying the squeaky clean image that they love about him, so they are angry about it. Some may think there is the possibility he could have had relations, but feel that she may be trying to openly black mail him into being into some kind of a relationship and they are angry there idol is being squeezed, manipulated, embarrassed.”

Meanwhile, Mariah Yeater didn't put Justin Bieber's name on his alleged baby's birth certificate. Instead, the birth certificate of 3-month-old Tristyn Yeater doesn't have a father's name listed at all.

Bieber's camp denies the allegations.

Let's hope for his sake that it isn't true, otherwise somebody's gonna get paid!