Mariah Yeater's Ex: Bieber Isn't Baby's Father -- I Am!
Justin Bieber has already taken a paternity test to prove that he's not the father of Mariah Yeater's 3-month-old son. But although the results of that test have yet to be released, Yeater's ex-boyfriend is also sure that Biebs isn't the baby daddy.
Kelly Clarkson Tina Fey Lori Heuring Rachel McAdams Leighton Meester