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Does Mariah Carey know Jennifer Lopez? Mariah Carey insists that she does not know Jennifer Lopez, a point she reiterated yesterday (March 8) in a video obtained by TMZ, in which she said "I still don't know her" about Jennifer Lopez.

Mariah Carey first said she did not know Jennifer Lopez in 2000, when a reporter asked Mariah Carey about Jennifer Lopez and Mariah Carey said "I don't know [Jennifer Lopez]." People thought this may have been a slight because Mariah Carey and Jennifer Lopez are both famous musicians recognizable to most people who are not even, themselves, musicians.

Jennifer Lopez did confirm that she and Mariah Carey did not know each other on Watch What Happens Live in 2015, when she agreed that she and Mariah Carey didn't know each other.

"We don't know each other," she said.

BUT GUESS WHO DIDN'T KNOW EACH OTHER MORE (ACCORDING TO THAT AFOREMENTIONED TMZ VIDEO)!!!

Mariah Carey said she still didn't even know Jennifer Lopez — even after she and Jennifer Lopez had been asked about not knowing each other — while she was leaving the Beverly Hilton Hotel (posh, but that type of '60s antiquity is not really my taste).

"What do you think of people referencing 'I don't know her?' all these years later?" asked someone who likely wasn't a reporter since the question was preceded by an autograph request.

You can IMAGINE what Mariah Carey said as she got into her commissioned Lyft (it might have also been a Lyft Plus but was probably not a Lyft Line).

Do you think Mariah Carey knows Jennifer Lopez? Do any of us really know each other? How about ourselves?

Check out an extensive collection of celeb-on-celeb disses: