This house ain’t big enough for Mimi’s ego!

Earlier this week, Will Ferrell stopped by Late Night and revealed that Mariah Carey filmed a cameo for his upcoming comedy The House, but noted she "did not make the final cut."

The comedian hinted to Seth Meyers that the songstress may have executed some diva-like behavior on set, but didn’t go into too much detail.

Thankfully, Ferrell’s costar Cedric Yarbrough took the late night confession as a green light to dish on what actually went down on set — and provided a detailed play-by-play of how Carey "ruined" her cameo!

After Will’s interview aired, the Speechless star took to Facebook to spill all the tea about Mimi’s ridiculous demands on set, sharing:

"Okay since Will Ferrell is talking, I’ma talk-ing. Yeah, a real funny cameo was SUPPOSED to happen in the new film #TheHouse with the superstar Mariah Carey. But it was ruined by superstar Mariah Carey. The film takes place in a suburban home but is made into a ‘Casino’. Why not have Mariah be an act in the casino? Funny idea. It’s rumored that she eventually showed up to set. This is true. But after waiting for her for 3-4 hours!"

Yup, that’s our girl.

The 44-year-old actor explained that the real drama started once Mimi arrived, continuing:

"While we waited the director & team had the idea of doing a stunt that Mariah’s body double would do now & bring in Mariah to match it. They do the stunt. All goes well. When Mariah finally showed up she refused to match the stunt. ‘Darling, I would never do it that way…’. I heard her say those exact words. She then requested a large fan for her hair to be blown around and a camera that would be above her, basically a crane shot. This lady was unprofessional & borderline abusive to our director, who tried his best to appease her every wish."

Eek. What a nightmare!

Yarbrough went on to use his rant to teach the diva, as well as aspiring actors, how to NOT act while filming a movie! He added:

"In the acting community, it’s not very good form to ‘tell’ on your fellow actors. They could be having a bad day, going through some personal things, & maybe Mariah was, I don’t know. But I do know that our crew didn’t deserve that, our director didn’t… For you young actors, be on time, know your homework, but be courteous and respectful. For us old heads, the same. This kind of behavior should be called out for what it is. I miss ‘I had a vision of love’ Mariah. Be a damn professional."

Interestingly enough, Yarbrough admitted to leaving out the "worst part" of the singer’s behavior, teasing he’d only reveal it in person to those he deemed worthy.

Disappointing? Sure. Surprising? Not one bit, dahling!

Take a look at Will’s interview and Yarbrough’s post (below) to get the full breakdown!