(CBS/AP) A spokeswoman for singer Justin Bieber says the allegation that he is the father of a 3-month old boy is "demonstrably false."
In a statement she issued Wednesday on Bieber's behalf, spokeswoman Meliisa Victor said the teen-age pop singer and his team have yet to see the paternity suit, but they will "vigorously pursue all available legal remedies" in response to the allegation.
According to "Star" magazine, Mariah Yeater, 20, filed court papers, charging she had sex with Bieber backstage at one of his Los Angeles concerts last year and that he's the father of her newborn child.
Online court records show Yeater filed a paternity lawsuit against Bieber on Monday in San Diego Superior Court.
Bieber, "all the rumors...the gossip...Im gonna focus on the positives...the music" Hre was referring to his new Christmas album, "Under the Mistletoe," released on Tuesday.