Justin Bieber is not playing when it comes to proving his innocence in this one! And I don’t blame him. This Mariah chick really tried to make him look crazy. Justin took his test Friday night in New Jersey (holla! LOL) and now it’s up to Mariah and her team to provide the baby’s DNA. More details below.

Marisa Mendez

Justin took the test at a lab under “very controlled circumstances.” We’re told there is a solid chain of custody, so it’s going to be hard for Mariah Yeater or her lawyer to challenge it.

Justin’s team will NOT settle or even discuss settlement with Yeater or her lawyer. It’s now up to her to provide DNA results from Mariah’s baby.

Justin has vowed to sue Mariah and her lawyers once he establishes he’s not the daddy.

Mariah’s lawyer was unavailable for comment.

TMZ