Description:Justin Bieber takes paternity test.
Hey everyone this is Nora Gasparian for Hollyscoop. Bieber made good to his word and took a DNA test on Friday night in New Jersey.
Justin took the test in a lab under "very controlled circumstances," and there is a solid chain of custody, which basically means the entire process, will be very well documented. So Mariah Yeater and her lawyer will have a tough time challenging the test.
Justin is very serious about the paternity claims. He refuses to set(0:53)