A celebrity gossip website is reporting a 20-year-old woman is filing a lawsuit against Justin Bieber, claiming the teen pop star is the father of her child.
Radaronline.com says Mariah Yeater, who lives in California, is demanding the singer take a paternity test "to scientifically confirm" he is the father of her 3-month-old baby boy.
The site says Yeater's lawsuit was filed late last month and the woman is requesting Bieber to provide adequate support for her baby.
Radaronline said in an affadavit signed under penalty of perjury, Yeater said she was 19-years-old when she had sex with the underage star backstage at one of his concerts in Los Angeles.
Bieber performed at the Staples Center in Los Angeles on Oct. 25, 2010.
The singer, who just released his first-ever holiday album, Under the Mistletoe, has been nominated for three awards at the MTV European Music Awards happening in Belfast on Nov. 6.
His girllfriend, Selena Gomez, will be hosting the show.