ABC News’ Suzan Clarke and Katie Kindelan report:

Pop star Justin Bieber has reportedly taken a DNA test to disprove the paternity claim of a 20-year-old woman who alleged that a backstage bathroom sexual tryst following one of the 17-year-old’s concerts resulted in a pregnancy.

A source close to Bieber told ABC News that arrangements were made for Bieber to take the test.  ABC News cannot independently verify that, but the gossip website TMZ.com is reporting that the teen heartthrob took the test on Friday in New Jersey under what it reported were very controlled circumstances.

Mariah Yeater had initially filed a paternity suit against Bieber but abruptly withdrew it last week. She has since hired new legal representation and reportedly wants to settle out of court.

Bieber has steadfastly denied Yeater’s allegations, saying the story was “completely made up” and that he has never met her.

The pop star may take legal action against Yeater following the results of the test.

Yeater had earlier accused her former boyfriend, Robbie, of fathering her baby. In her court filings, Yeater alleged that she and Bieber engaged in a minutes-long tryst in a backstage bathroom at the Staples Center in Los Angeles following a concert in October 2010. She was 19 and Bieber, 16. Her son, Tristyn Anthony Markhouse Yeater, was born in July.

His team says the pop star has no intention of reaching a settlement with Yeater, and added that text messages purportedly sent by Yeater are evidence of a classic celebrity shakedown.

In the messages, released by TMZ, Yeater allegedly wrote last week: “Pleeease ERASE ALL MESSAGES from my mom where she says Tristyn is Robbie’s Son. I’ll kick u when we get paid. I’m trusting you pleeease.”

In another text, Yeater allegedly writes: “Would you please stress to Robbie how important it is for him to be in his son’s life?”

Yeater also faces a bench trial next month on a misdemeanor battery charge filed against her last December claiming she slapped 18-year-old Robbie during a dispute.

ABC News’ Sheila Marikar contributed to this report.