Jeffrey Mayer/WireImageJustin Bieber has made good on his promise to take that DNA test -- and prove once and for all that he did not father Mariah Yeater's baby son. According to TMZ, Bieber went to a lab on Friday night in New Jersey, where he took the test under "very controlled circumstances." If he's exonerated as baby daddy, then the squeaky-clean pop star intends to sue Yeater for being a liar liar pants on fire.
Putting all that baby mama drama behind them, Bieber and girlfriend Selena Gomez put up a united front at Sunday's American Music Awards, which is their version of Prom.
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