Mariah Yeater Believes Justin Bieber's Paternity Test Will Be Positive: "No Questions About It"

Mariah Yeater, the 20-year-old woman claiming Justin Bieber is the father of her baby, was asked some tough questions during her interview last night on The Insider — like why did she wait until now to break the news?

OK! NEWS: MARIAH YEATER STORMS OUT OF INTERVIEW OVER JUSTIN BIEBER BABY CLAIMS

"I still am... I'm scared," Mariah told The Insider. "I was very hesitant. This is a very serious matter and it had to be brought to his attention. To everyone's."

And what about the reports made from her ex-boyfriend's family saying Mariah filed a paternity suit against him too?

"I have no comment."

OK! NEWS: JUSTIN BIEBER TO TAKE PATERNITY TEST & PURSUE LEGAL ACTIONS AGAINST MARIAH YEATER?

Justin, who told Today he had "never met" Mariah, will reportedly be taking a paternity test to prove he's not the father of Mariah's 3-month-old son.

But Mariah says she has "nothing to hide" and the DNA will prove the baby is Justin's.

"No questions about it," she said.

Watch a clip of Mariah's interview over at The Insider!