Mariah Carey doesn't know if her ex-husband Nick Cannon will be in her new E! docuseries 'Mariah's World'.

Mariah Carey

Mariah Carey

The 'Without You' hitmaker - who has five-year-old twins Moroccan and Monroe with the 'America's Got Talent' host - has admitted she has no idea what will be on the show when it airs on December 4.

The 46-year-old singer attended the Television Critics Association press tour on Wednesday (03.08.16) in Los Angeles and when a reporter assumed he would be making an appearance she corrected them

Mariah - who is currently planning her wedding to Australian billionaire James Packer - said: "I didn't say that, darling. I said he came around - I don't know what makes final cut."

Meanwhile, Mariah has confirmed that her fiancé James will be included and he's been "very good in allowing some moments" for the camera.

She said: "Yes, he's part of the series."

The buxom blonde said that her twin kids are hilarious when they are on screen and she could even see them having their own spin-off in the future.

She laughed: "They could have their own show because that's how funny they are."

And she hopes the eight-episode series will show people the "real" Mariah.

The 'Fantasy' singer said: "I don't know that anybody really knows the real me because if somebody sees me on TV ... it's not enough time to get to know somebody. My goal is for it to be a lasting piece of work for my fans."