Justin Bieber has written a song inspired by the woman who falsely claimed to be his baby mama.

The Biebs told journalists at a listening party in London that he had written “songs like that girl – Mariah Yeater – who said she was going to have my baby,” the BBC reports.

Back in November, Mariah Yeater claimed that Justin Bieber had fathered her baby. She then withdrew the claim, but Bieber still took a paternity test proving he was not the father.

Earlier this week, Bieber tweeted about his wannabe baby mama, telling her “you will never get this” in the style of Borat.

There’s no word yet on whether the song will make it into Believe, however, as Bieber revealed he’s recorded about 40 songs.

“Every song has a piece of me, it’s hard to pick,” he said. “I wrote almost all of them or co-wrote them.”

Believe is due June 19.