Justin Bieber is still not over being accused of knocking up a fan backstage.

Recently, Justin tweeted his accuser Mariah Yeater with a “You’ll never get this” Borat video and now he’s revealing that he wrote a song about her!

Justin told London reporters that he wrote a song on his upcoming album “Believe” about his alleged baby mama.

“There’s a song about that girl that said she was gonna have my baby, Mariah Yeater,” Bieber admitted. “There are songs about things I’m going through. I wrote songs about different situations.”

For those living under a rock, 20-year-old Mariah Yeater caused a worldwide panic when she claimed that she and the then 17-year-old Bieber had unprotected sex in a backstage bathroom resulting in her pregnancy.

Who would have thought this 18-year-old teen idol would already be singing about baby mama drama?