Mariah Carey has now disclosed the actual cause behind her long-running dispute with Jennifer Lopez.

Mariah Carey has been slamming Jennifer Lopez for the past two decades by saying she “doesn’t know her.”

Mariah Carey’s memoir has been released, and tea has just been served. The 50 year old has written about their tumultuous relationship, with a vicious dig tossed in for good measure.

While others speculated that the singers just never had the opportunity to meet, it turns out that there is a reason why Mimi has never acknowledged J.Lo’s existence throughout the years, and it has to do with her ex-husband, sabotage, and a music sample.

In the book, titled The Meaning of Mariah Carey, Mimi discusses her long-running dispute with Jennifer Lopez, whom she mentions but never names, refusing to print her name.  Instead, Mariah alludes to “another female entertainer on [Sony] (whom I don’t know)”. Wow, the pettiness.

Mariah’s remark is a throwback to her famous “I don’t know her” phrase.

Mariah also discussed her divorce from former Sony Music CEO Tommy Mottola.

Mottola is accused of attempting to sabotage the success of Carey’s 2001 film Glitter and the film’s accompanying lead single Loverboy, with the scheme including Lopez’s song I’m Real.

“Much of what went wrong with Glitter led back to Tommy,” the singer wrote.

“He was angry about the divorce and my departure from Sony, and he used all his power and connections to punish me.”

When photographers queried the singer about the Maid in Manhattan actor in the early 2000s, she merely shook her head and said, “I don’t know her.”

She subsequently told TMZ in 2016 that she “still doesn’t know [Lopez],” despite the actor subsequently stating on television that they’d met “many times” and that “she’s forgetful, I guess.”

The turmoil begins and ends with Tommy Mattola, her ex-husband and then Sony Music executive overseeing J.Lo, according to the memoir. Tommy was reportedly attempting to sabotage Mimi’s career by giving a sample from her 2001 hit “Loverboy” to “another female entertainer on their label (whom I don’t know).”

Another bone of dispute is Mariah’s semi-autobiographical film Glitter, which is both epically cringe-worthy and binge-worthy. “Much of what went wrong with Glitter led back to Tommy. He was angry about the divorce and my departure from Sony, and he used all his power and connections to punish me ,” she says. The soundtrack of Glitter was released by rival Virgin Records on September 11, 2001, which was an unfortunate date. She claims Tommy “and his cronies” tampered with her album’s advertising materials at record stores and “interfered” with the Glitter soundtrack, among other things.

Mariah goes on to say that her ex-boyfriend Mottola interfered with a song she was working on with Ja Rule.

She claims that Ja was working on a song with her before Motolla became involved, and that they ended up collaborating on I’m Real.

Mariah alleges that her ex-husband phoned “his manager Irv Gotti, asking him and Ja to collaborate on a duet for the same female entertainer’s record – leaving me scrambling to remake the song.”