Nick Cannon claims Mariah Carey's ''whole reality show is fake.''

The 36-year-old star, who has five-year-old twins, Morocco and Monroe, with the 'Obsessed' hitmaker, thinks his ex-wife's E! docu-series, 'Mariah's World,' ''feels like a soap opera'' and doesn't believe she is really dating dancer Bryan Tanaka.

Speaking to Howard Stern on his SiriusXM radio show on Wednesday (08.02.17), the 'America's Got Talent' host said: ''First of all, I think the whole reality show is fake. I'm a producer, so I know how [it works]. Like, you can't have a well-lit private conversation. Like, that s**t doesn't happen. I don't buy none of that s**t.''

Mariah, 46, started dating Bryan, 33, in October shortly after her split from Australian billionaire James Packer, but Nick believes their romance is just for ratings.

He said: ''I don't even get into it. It feels like they wrote the story. That s**t is like a soap opera.''

Nick made a brief cameo on the series but insists he had no idea TV cameras would be at his children's birthday party.

He explained: ''It was a party, so I showed up to hang out with my kids and I was like, 'There's f**king cameras here. But all right, y'all do whatever you gotta do.' So that type of stuff doesn't bother me because, again, we're in it. This is the world that we're in, but when you start trying to pull a fast one on people, that s**t is silly.''

Despite his strong opinions, Nick will always love Mariah.

He added: ''I'll never stop loving her. She gave me two, amazing beautiful gifts. We talk every day.''