Justin Bieber's Alleged Baby Mama Outed Again as Liar 1Justin Bieber’s alleged baby mama Mariah Yeater has been outed–again–as a liar. This time Robert Powell, another alleged baby daddy, is telling all in a tabloid interview, claiming Mariah’s motive all along was to sell her story.

“She lied,” Robert Powell told RumorFix. He said Yeater picked up $50,000 for her story from a tabloid and just used Bieber because he is a big name.

“She just picked [Justin Bieber], because she thought he was famous and all and thought she could get a lot of money by telling the magazine Justin was the father. She just saw him as an opportunity to make a lot of money.”

There’s only one problem. Yeater filed a sworn affidavit with a San Diego court claiming Bieber is the father. If she lied in the affidavit, she can, and should be, prosecuted for perjury.

What’s more, she made Justin’s life a living hell for the past two months. The allegations finally forced him to take a paternity test.

He’s threatened to sue her, but if she has no assets, the lawsuit would merely be symbolic. He could make a claim for any money she made or will make from the hoax, if it is a hoax.

The claim also raises questions about Yeater’s lawyer, Jeffery Leving, who said he was convinced that Yeater is telling the truth.

Oddly, the gestation of the baby coincides pretty closely to Bieber’s Staples Center concert in Los Angeles on Oct. 2010. That’s when Yeater claims they had bathroom sex that led to her pregnancy.

Leving has called Powell’s claims a publicity stunt to cash in on the story.

Powell could certainly use the money. He’s in jail at the moment, after being arrested for burglary and drug possession.

He claims he’s the father of Yeater’s baby boy and makes it sound like he was in on the alleged hoax.

“We were both homeless and living in Oceanside [California] and Mariah was trying to make some quick money,” he told the Web site.

“I feel sorry for Justin Bieber,” he said.

“He’s just a little kid, man. He don’t need to be going through all this drama. He got a career and sh*t to focus on. I feel sorry for the dude.”