The Insider.com

Looks like Justin Bieber still isn't over all his baby mama drama that went down last year.

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Justin recently revealed that he wrote a song about 20-year-old Mariah Yeater, the woman who took out a paternity case claiming the Biebs got her pregnant after a backstage encounter at one of his concerts.

She has since withdrawn her legal action (after Justin offered to take a paternity test), but that doesn't mean Justin is letting it go.

Related: Justin Bieber Ridicules Mariah Yeater

Speaking to journalists at a London club where he previewed tracks off his new album Believe, the Biebs revealed, "There's a song about that girl that said she was gonna have my baby, Mariah Yeater. There are songs about things I'm going through. I wrote songs about different situations."

However, it's not known yet if the song made the final cut on the album.

Yeater seems to be on the Biebs' brains as of late, as he also recently sent out a tweet taking a jab at her.

Related: Justin Bieber -- 'I'm Not a Kid Anymore'

"Dear mariah yeeter [sic]...we have never met...so from the heart i just wanted to say," he tweeted, then included a link to an audio clip from Sacha Baron Cohen's Borat in which he repeats, "You will never get this."

… Though now she'll always have the song he wrote about her!