American Mariah Yeater recently filed a lawsuit against Canadian singer Justin Bieber, claiming the teen pop sensation was the father of three-month-old baby, Tristyn Yeater. However, when she filled out the newborn's birth certificate, she left out the father's name, choosing to leave that field on the form blank.

A celebrity gossip website, RumorFix, obtained a copy of Tristyn's birth certificate.

According to the Web site, the official document from the San Diego Count, lists the baby's name as Tristyn Anthony Markhouse Yeater. The date of birth is listed as July 6, 2011 and the mother's name is given as Mariah Laci Yeater, 20. A notable omission is Bieber's name, if indeed he is the father, as Yeater claims.

Apparently the two engaged in unprotected sex, while backstage at one of Bieber's concerts. Yeater has since called for a medical test to scientifically confirm paternity.

An interesting point is that while Yeater claims to be the victim, legally at least, Bieber is actually the victim; when the couple had sex 13 months ago, Bieber was only 16, making it, on Yeater's part statutory rape.

Representatives of the singer have denied all reports and speculations.

It's sad that someone would fabricate malicious, defamatory and demonstrably false claims. We will vigorously pursue all available legal remedies to defend and protect Justin against these allegations, said Bieber's representatives, in a statement to RumorFix.