Tearful Mariah Yeater insists she has evidence to prove Justin Bieber is the father

As Beliebers still recover from the shock that Mariah Yeater claims their idol is the father of her child, she has given her first ever TV interview. The 20-year-old has been dressed to look young and innocent, with minimal make-up and a white shirt beneath her pink sweater, unlike the controversial topless pictures of her which emerged last week.

The show must go on: Just Bieber won Best Male at the MTV Europe Music Awards last night in Belfast, telling fans there's been 'a lot of c**p on the internet' lately

It is difficult to tell from her body language what the truth is, but Yeater is close to tears as she explains Justin Bieber went from 'cute and gushy to aggressive' during their liasion in a backstage toilet last year. In the exclusive interview with The Insider, the Californian reinforces the claims that the Baby singer fathered her four-month-old son Tristyn. 

Yeater gave birth following the alleged incident with the Canadian star, which reportedly occurred following 30 seconds of unprotected sex in a VIP bathroom at the Staples Center in LA after a concert in October 2010. Speaking of the incident, Mariah said: 'He (Bieber) immediately took a liking to me and we just got to talking and then he eventually asked me, "Do you mind if we can go somewhere and be alone?'" Yeater then said Bieber, then 16-year-old, took her to a bathroom.

When she was quizzed over what evidence she has to support her claims, Yeater said she has provided the relevant information to her attorney but could not discuss it on camera. She added: 'It'll show in court to prove that my allegations are true.' The Insider confronted Yeater on a recent interview with a security guard who claims that on the night in question, Bieber's dressing room was full of friends and family, staying with the teenage heartthrob until he left. 

Asked for her response on the guard's claims, Yeater said: 'No comment.' Tristyn was born in July, with a child support hearing scheduled for December 15. Continuing with his career in the face of adversity, Bieber accepted the Best Pop award at the MTV European Music Awards last night in Belfast.