Justin Bieber has made good on his promise to take a DNA test to prove that he’s not the father of Mariah Yeater‘s 4-month old son, as she has claimed in a lawsuit against the pop star.

TMZ reports that Bieber took the DNA test on Friday at a laboratory in New Jersey, and that there’s been a tight watch on who’s been handling the test to avoid any possible arguments from Yeater’s team as to the validity of the results. There’s no word as to when the results might be released.

From the beginning, Bieber has insisted that he is not the father of Yeater’s baby, and has made several public statements stating his case. During an interview on Today, Bieber took a stand, saying to Matt Lauer: “I’d just like to say basically that none of those allegations are true … I know I’m going to be a target, but I’m never going to be a victim.”

Now that Justin Bieber has taken a DNA test to hopefully squash allegations from Mariah Yeater that he fathered her 4-month-old son, Yeater’s camp is saying that her son Tristynn will indeed take a test as well despite nearly a week of silence since Bieber’s submission.

Yeater’s lawyers tell TMZ that the 19-year-old will submit her son for testing, hoping to prove her claims that Bieber is his biological father. The lawyers also say that someone from their team should have been present when DNA samples were taken from Bieber so that they could ensure the accuracy and reliability of the tests.