Justin Bieber Pens Song About Paternity Claim, to Debut 'Boyfriend' Video May 2

Justin Bieber isn't done hitting back at Mariah Yeater, who accused him of fathering her child. After using a "Borat" video to mock the 20-year-old girl, the Canadian teen heartthrob revealed he has written a song about the baby daddy accuser.

"There's a song about that girl - Mariah Yeater - that said she was gonna have my baby," so the boyfriend of Selena Gomez told reporters in London on Monday, April 23 night when asked about his inspirations behind songs for his upcoming album "Believe".

"There are songs about things I'm going through. I wrote songs about different situations," the pint-sized singer went on adding. Claiming that he has recorded 40 songs, he is unsure that the track about Yeater will make it into the cut. "Every song has a piece of me, it's hard to pick. I wrote almost all of them or co-wrote them," he went on sharing.

On another occasion, Bieber announced when the music video for his new single "Boyfriend" will come out. "The 'Boyfriend' video should be coming in like seven or eight days... Pretty soon," he told Capital FM.

His manager Scooter Braun later confirmed that the clip will debut in full on May 2. On Tuesday, April 24, the "Baby" singer also took to Twitter to spread the news as writing, "and yes...the #BOYFRIENDvideo hits next week. FINALLY."

"Boyfriend" is the first single from Bieber's third studio album "Believe", which is set to hit stores in the U.S. on June 19.