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Justin Bieber’s team is working fast to combat tabloid reports that a young woman filed a paternity suit against the pop star.

“While we haven’t yet seen the lawsuit, it’s sad that someone would fabricate, malicious, defamatory and  demonstrably false claims,” Bieber’s publicist told ABC News late Tuesday. “We will vigorously pursue all available legal remedies to defend and protect Justin against these allegations.”

On Tuesday, Star magazine reported that a 20-year-old California woman filed a paternity suit alleging she got pregnant after having sex with Bieber, 17, backstage at one of his Los Angeles concerts. According to the magazine, the woman now wants Bieber to take a paternity test and “provide adequate support for my baby.”

Bieber is currently dating 19-year-old pop star Selena Gomez.