Nicki Minaj is launching her next Massive Attack on Kevin Federline over his new memoir, “You Thought You Knew.”

The “Barbie World” hitmaker, 42, slammed Britney Spears’ “bitch” ex-husband with a nasty message in response to Spears’ statement regarding Federline’s new book.

“KEVIN FEDERLINE B–H WHEN I CATCH U,” Minaj wrote, per TMZ . The tweet has since been taken down.

In Spears’ message, the “Gimme More” songstress, 43, called out her ex — to whom she was married from September 2004 to July 2007 — over his “constant gaslighting” amid the release of his memoir, in which he accuses Spears of child abuse , cheating with one of her backup dancers and drug use .

“The constant gaslighting from ex-husband is extremely hurtful and exhausting,” she wrote via X on Wednesday.

“I hav

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