The 'All I Want For Christmas is You' hitmaker - who has nine-year-old twins Moroccan and Monroe with her ex-husband Nick Cannon - appeared on Ellen Degeneres' talk show back in 2008, amid speculation at the time that she may have been expecting a baby.
During the episode, Ellen offered Mariah a glass of champagne to test if the singer was pregnant, and Mariah - who was pregnant at the time, but tragically miscarried her child - has now insisted she ''didn't enjoy that moment''.
She said: ''I was extremely uncomfortable with that moment is all I can say. And I really have had a hard time grappling with the aftermath. I wasn't ready to tell anyone because I had had a miscarriage. I don't want to throw anyone that's already being thrown under any proverbial bus, but I didn't enjoy that moment.''
The 50-year-old singer said she would have liked to see some ''empathy'' from Ellen and her team about the situation.
Speaking during an interview with Vulture, she added: ''[There is] an empathy that can be applied to those moments that I would have liked to have been implemented. But what am I supposed to do? It's like, [sings] 'What are you going to do?'''
Mariah's confession comes after Ellen, 62, and her talk show have been under intense scrutiny in recent months, following allegations of a ''toxic'' work environment caused by three producers of the programme.
The show ''parted ways'' with executive producers Ed Glavin and Kevin Leman, and co-executive producer Jonathan Norman earlier this month as a result of the claims, and Ellen - who was not accused of any wrongdoing in the initial allegations, but has since been slammed by some former guests - sent a letter of apology to staff after the allegations emerged.
She wrote: ''On day one of our show, I told everyone in our first meeting that 'The Ellen DeGeneres Show' would be a place of happiness - no one would ever raise their voice, and everyone would be treated with respect. Obviously, something changed, and I am disappointed to learn that this has not been the case.
''For that, I am sorry. Anyone who knows me knows it's the opposite of what I believe and what I hoped for our show.''
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